This video will also help you with balancing equations:
balancing chemical equations
Kairos guys, check your email!
Happy Holidays!
Website Image
Happy Holidays!
Everyone should be complete the take home test over break. There are lots of resources at the bottom of the blog, and there is a balancing equations simulator, which can be found below under 'Phet Simulations'.
This video will also help you with balancing equations:
balancing chemical equations
Kairos guys, check your email!
Happy Holidays!
This video will also help you with balancing equations:
balancing chemical equations
Kairos guys, check your email!
Happy Holidays!
Wednesday, December 19
Section 10: Watch these videos, then write the reaction types for #1-8 on page 2 of your blue packet
Chemical Reactions with the Flinstones
5 Major Chemical Reactions
Sections 9 & 11: Your answer keys from the blue packet can be found under the 'Homework Documents' section. (bottom of the page)
Good luck on your take-home assignment!
Chemical Reactions with the Flinstones
5 Major Chemical Reactions
Sections 9 & 11: Your answer keys from the blue packet can be found under the 'Homework Documents' section. (bottom of the page)
Good luck on your take-home assignment!
Tuesday, December 18
Sections 8 & 11: Indicate the type of reactions for letters a through m.
Section 9: Watch these videos, then write the reaction types for #1-8 on page 2 of your blue packet
Chemical Reactions with the Flinstones
5 Major Chemical Reactions
Section 10: Finish your chart from class today. All of the tools you need can be found in yesterday's post. Also watch this:
Naming Covalent Compounds
Then try the front side of your blue packet.
a) Na3PO4 + 3 KOH à 3 NaOH + K3PO4
b) MgCl2 + Li2CO3 à MgCO3 + 2 LiCl
c) C6H12 + 9 O2 à 6 CO2 + 6 H2O
d) Pb + FeSO4 à PbSO4 + Fe
e) CaCO3 à CaO + CO2
f) P4 + 3 O2 à 2 P2O3
g) 2 RbNO3 + BeF2 à Be(NO3)2 + 2 RbF
h) 2 AgNO3 + Cu à Cu(NO3)2 + 2 Ag
i) C3H6O + 4 O2 à 3 CO2 + 3 H2O
j) 2 C5H5 + Fe à Fe(C5H5)2
k) SeCl6 + O2 à SeO2 + 3Cl2
l) 2 MgI2 + Mn(SO3)2 à 2 MgSO3 + MnI4
m) O3 à O + O2
Section 9: Watch these videos, then write the reaction types for #1-8 on page 2 of your blue packet
Chemical Reactions with the Flinstones
5 Major Chemical Reactions
Section 10: Finish your chart from class today. All of the tools you need can be found in yesterday's post. Also watch this:
Naming Covalent Compounds
Then try the front side of your blue packet.
Monday, December 17
If you're still confused about VSEPR theory, watch this:
http://www.youtube.com/watch?v=qvPKWcXdo7Y
Molecule Builder:
http://phet.colorado.edu/en/simulation/build-a-molecule
All Sections: Do this...
VSEPR practice
http://www.youtube.com/watch?v=qvPKWcXdo7Y
Molecule Builder:
http://phet.colorado.edu/en/simulation/build-a-molecule
All Sections: Do this...
VSEPR practice
Section 8: Check these out:
Section 11: Here are the formulas for your chart:
1) CH4
2) CH2Cl2
3) H2O
4) HF
5) NH3
6) N2
7) CO2
8) BF3
9) O2
10) HCN
Friday, December 14
All Sections: Work on your background research!!! Also, watch this video - it's awesome for explaining exceptions to the octet rule!
http://www.youtube.com/watch?v=-i29mjts0Jo
http://www.youtube.com/watch?v=-i29mjts0Jo
Thursday, December 13
All Sections: Complete the worksheet you got in class today.
**Start doing your background research for your science fair project!!
**Start doing your background research for your science fair project!!
Wednesday, December 12
All Sections: A background research outline and an experimental for your science fair project are due next Tuesday (12/18). If you did not get a check plus on your science fair proposal, or if you just have questions for me, you should make an appointment to see me. Sign up sheets for these appointments for the next two days can be on the door of 4K3.
Sections 8 & 10: The terms from last night's homework, plus the terms below are all of the words/phrases you need to complete your covalent bonding map. Define, in your notebook, any term below that you do not already have. Then, use your full list to complete the concept map. Do this is pencil just in case you make a mistake!
Sections 8 & 10: The terms from last night's homework, plus the terms below are all of the words/phrases you need to complete your covalent bonding map. Define, in your notebook, any term below that you do not already have. Then, use your full list to complete the concept map. Do this is pencil just in case you make a mistake!
- polar bond
- non-polar bond
- s orbital
- p orbital
- hybrid orbital
- sigma bond
- pi bond
- double and triple bonds
- shapes of compounds
- linear
- bent
- trigonal planar
- trigonal pyramidal
- tetrahedral
Tuesday, December 11
Section 9 & 10: Use chapter 6 (section 5) of your textbook to define the following words/concepts in your notebook; you will need them for tomorrow's in-class activity:
- molecular geometry
- molecular orbitals
- VSEPR theory
- hybridization
- hybrid orbitals
- intermolecular forces
- dipole
- hydrogen bonding
- London dispersion fores
Also, tell me why the new topical website photo is a crashing water wave...
***Section 9: See if you can fit any of these terms into your covalent bonding map - do this is pencil just in case you make a mistake!
Section 11: The terms from last night's homework, plus the terms below are all of the words/phrases you need to complete your covalent bonding map. Define, in your notebook, any term below that you do not already have. Then, use your full list to complete the concept map. Do this is pencil just in case you make a mistake!
- polar bond
- non-polar bond
- s orbital
- p orbital
- hybrid orbital
- sigma bond
- pi bond
- double and triple bonds
- shapes of compounds
- linear
- bent
- trigonal planar
- trigonal pyramidal
- tetrahedral
Monday, December 10
Sections 8 & 11: Use chapter 6 (section 5) of your textbook to define the following words/concepts in your notebook; you will need them for tomorrow's in-class activity:
- molecular geometry
- molecular orbitals
- VESPR theory
- hybridization
- hybrid orbitals
- intermolecular forces
- dipole
- hydrogen bonding
- London dispersion fores
Friday, December 7
Sections 9-11: Study for Monday's quiz.
Topics - Ionic and covalent bonding, Lewis structures, ionic formula writing and naming.
Topics - Ionic and covalent bonding, Lewis structures, ionic formula writing and naming.
These worksheets will help you study:
Also, use your notes and homeworks. Stop by Monday morning in 3K2 with questions.
Thursday, December 6
Sections 8: Finish the worksheet from today's class and study for tomorrow's quiz.
Topics - Ionic and covalent bonding, Lewis structures, ionic formula writing and naming. Problems 55-58, 64, 66 and 67 on page 213 in your textbook will help you study.
Sections 10: Study for your quiz on Monday.
Topics - Ionic and covalent bonding, Lewis structures, ionic formula writing and naming. Problems 55-58, 64, 66 and 67 on page 213 in your textbook will help you study.
Sections 9 & 11: You will find the Ionic Formula Chart under 'Homework Documents'. Use it to complete the lab, and answer the following questions (these can be done in your notebook):
1) Write the chemical formula for the following compounds:
a. Lithium Iodide
b. Tin (II) Nitrite
c. Cobalt (III) Oxide
d. Silver Bromide
e. Lead (II) Nitride
2) Name the following compounds:
c. Al(CN)3
d. Pb(SO4)2
e. Cu3P
Topics - Ionic and covalent bonding, Lewis structures, ionic formula writing and naming. Problems 55-58, 64, 66 and 67 on page 213 in your textbook will help you study.
Sections 10: Study for your quiz on Monday.
Topics - Ionic and covalent bonding, Lewis structures, ionic formula writing and naming. Problems 55-58, 64, 66 and 67 on page 213 in your textbook will help you study.
Sections 9 & 11: You will find the Ionic Formula Chart under 'Homework Documents'. Use it to complete the lab, and answer the following questions (these can be done in your notebook):
1) Write the chemical formula for the following compounds:
a. Lithium Iodide
b. Tin (II) Nitrite
c. Cobalt (III) Oxide
d. Silver Bromide
e. Lead (II) Nitride
2) Name the following compounds:
a. NH4Cl
b.
Fe(NO3)3c. Al(CN)3
d. Pb(SO4)2
e. Cu3P
Wednesday, December 5
Section 8: You will find the Ionic Formula Chart under 'Homework Documents'. Use it to complete the lab, and answer the following questions (these can be done in your notebook):
1) Write the chemical formula for the following compounds:
a. Lithium Iodide
b. Tin (II) Nitrite
c. Cobalt (III) Oxide
d. Silver Bromide
e. Lead (II) Nitride
2) Name the following compounds:
c. Al(CN)3
d. Pb(SO4)2
e. Cu3P
Sections 9 & 11: Read your lab and be prepared for tomorrow! Also, on page 212 in your textbook, answer questions 55, 56, 58, 64, 66 and 67.
Section 10: Complete the worksheet you got in class today. Also, read pages 190-194 in your textbook and answer Section Review questions 1-5 in your notebook.
1) Write the chemical formula for the following compounds:
a. Lithium Iodide
b. Tin (II) Nitrite
c. Cobalt (III) Oxide
d. Silver Bromide
e. Lead (II) Nitride
2) Name the following compounds:
a. NH4Cl
b. Fe(NO3)3c. Al(CN)3
d. Pb(SO4)2
e. Cu3P
Sections 9 & 11: Read your lab and be prepared for tomorrow! Also, on page 212 in your textbook, answer questions 55, 56, 58, 64, 66 and 67.
Section 10: Complete the worksheet you got in class today. Also, read pages 190-194 in your textbook and answer Section Review questions 1-5 in your notebook.
Tuesday, December 4
Sections 8, 9 & 11: Read pages 190-194 in your textbook and answer Section Review questions 1-5 in your notebook.
Section 10: You will find the Ionic Formula Chart under 'Homework Documents'. Use it to complete the lab, and answer the following questions (these can be done in your notebook):
1) Write the chemical formula for the following compounds:
a. Lithium Iodide
b. Tin (II) Nitrite
c. Cobalt (III) Oxide
d. Silver Bromide
e. Lead (II) Nitride
2) Name the following compounds:
c. Al(CN)3
d. Pb(SO4)2
e. Cu3P
Section 10: You will find the Ionic Formula Chart under 'Homework Documents'. Use it to complete the lab, and answer the following questions (these can be done in your notebook):
1) Write the chemical formula for the following compounds:
a. Lithium Iodide
b. Tin (II) Nitrite
c. Cobalt (III) Oxide
d. Silver Bromide
e. Lead (II) Nitride
2) Name the following compounds:
a. NH4Cl
b. Fe(NO3)3c. Al(CN)3
d. Pb(SO4)2
e. Cu3P
Monday, December 3
All Sections: I forgot to post the homework until now so... there is no homework! Happy Monday :)
Friday, November 30
All Sections: Complete the Lewis Dot Structures for the following molecules in your notebook,
CH2O
CH4O
C2H7N
NBr3
CN-
HCO3-
Thursday, November 29
Sections 8, 9 & 11: Complete Data Table 2 in your lab. Also, correct the worksheet you were assigned yesterday, if need be.
Wednesday, November 28
All Sections: Sorry I can't be with you guys today. For next class, complete the worksheet found in the 'Homework Documents' section. Sections 9-11, don't forget that your make-up test closes at 10pm tomorrow night.
Tuesday, November 27
Section 8 & 10: In your lab, read the 'Step-by-Step' procedure section (pages 2-4), followed by the 'Part 2- Covalent Compounds' procedure. This, coupled with what we did in class today, should be enough to help you complete Data Table 2. Complete your data table in pencil! Also, there's a great website, which can be found under 'Helpful Links' called 'Lewis Dot Practice'. This will really help you if you're feeling stuck.
Sections 9 & 11: Complete the worksheet you got in class today.
Sections 9 & 11: Complete the worksheet you got in class today.
Monday, November 26
Section 8: Finish putting your vocab in your notebook and complete both worksheets that you got in class today.
Section 10: Complete both worksheets that you got in class today.
Section 10: Complete both worksheets that you got in class today.
Friday, November 16
Sections 8 & 11: Read through your lab manual, so you are prepared for Monday. Also, answer questions 6-9 on the last two pages. REMEMBER you only have 30 minutes on Monday to finish and hand in this lab, make sure you come ready to go!
Section 9: Complete your lab for Monday.
All: Periodic Trends test is Tuesday for sections 8, 9 and 10! Test is Monday for section 11!
Section 9: Complete your lab for Monday.
All: Periodic Trends test is Tuesday for sections 8, 9 and 10! Test is Monday for section 11!
Wednesday, November 14
All Sections: Using Chapter 5 of your textbook, complete the following:
1) Define
a) atomic radius
b) electronegativity
c) ion(s)
d) ionization energy
e) electron affinity
2) Describe the periodic trend for each of the following (the first one is done for you as a guide)
a) atomic radius - decreases from left to right across a row and increases down a group
b) electronegativity
d) ionization energy
3) Use the concept of ionization energy to explain why sodium form a 1+ ion (Na+) but
magnesium forms a 2+ ion (Mg2+).
4) What is the difference between electron affinity and ionization energy?
1) Define
a) atomic radius
b) electronegativity
c) ion(s)
d) ionization energy
e) electron affinity
2) Describe the periodic trend for each of the following (the first one is done for you as a guide)
a) atomic radius - decreases from left to right across a row and increases down a group
b) electronegativity
d) ionization energy
3) Use the concept of ionization energy to explain why sodium form a 1+ ion (Na+) but
magnesium forms a 2+ ion (Mg2+).
4) What is the difference between electron affinity and ionization energy?
Monday, November 12
Section 8: Complete the pink packet, if you have not already. Also, study your notes so I can answer any lingering questions tomorrow.
Section 10: In the pink packet, complete page two, as well as, problems 3-6.
Section 11: Make sure you have solid notes and are ready to finish your test on Wednesday.
Section 10: In the pink packet, complete page two, as well as, problems 3-6.
Section 11: Make sure you have solid notes and are ready to finish your test on Wednesday.
Thursday, November 8
All: Science Fair Project Proposal Forms are due tomorrow!!
Section 8 & 9: In the pink packet, complete page two, as well as, problem #3 & 5. Section 9, don't forget that your supplemental problems are due tomorrow.
Here are two examples of nobel gas configuration:
Section 10: Here are some electron configurations:
Section 8 & 9: In the pink packet, complete page two, as well as, problem #3 & 5. Section 9, don't forget that your supplemental problems are due tomorrow.
Here are two examples of nobel gas configuration:
As: [Ar]4s23d104p3
Ru: [Kr]5s24d6
Section 10: Here are some electron configurations:
Fe: 1s22s22p63s23p64s23d6
Sr: 1s22s22p63s23p64s23d104p65s24d10
Now, you try writing the electron configurations for these elements in your notebook:
Ga, Ar, Ru
Section 11: Complete the pink packet
Now, you try writing the electron configurations for these elements in your notebook:
Ga, Ar, Ru
Section 11: Complete the pink packet
Wednesday, November 7
Sections 8 & 11: Supplemental test problems are due tomorrow.
Also, here are some electron configurations:
Now, you try writing the electron configurations for these elements in your notebook:
Ga, Ar, Ru
Section 9: Test corrections due tomorrow. Also, finish your lab, if you have not already handed it in.
Here are some electron configurations:
Now, you try writing the electron configurations for these elements in your notebook:
Ga, Ar, Ru
Also, here are some electron configurations:
Fe: 1s22s22p63s23p64s23d6
Sr: 1s22s22p63s23p64s23d104p65s24d10
Now, you try writing the electron configurations for these elements in your notebook:
Ga, Ar, Ru
Section 9: Test corrections due tomorrow. Also, finish your lab, if you have not already handed it in.
Here are some electron configurations:
Fe: 1s22s22p63s23p64s23d6
Sr: 1s22s22p63s23p64s23d104p65s24d10
Now, you try writing the electron configurations for these elements in your notebook:
Ga, Ar, Ru
Tuesday, November 6
All Sections: Complete Test corrections for tomorrow. Start working on the Supplemental Problems, if need be (they are due on Thursday).
Wednesday, October 24
All Sections: If you click on the link below, you will find the answers to the Chapter 4, Section 1 questions:
Ch 4 Section 1 - Answer Key
Sections 8 & 10: Complete all of the following for next week:
Ch 4 Section 1 - Answer Key
Sections 8 & 10: Complete all of the following for next week:
- Read pages 104-110 in your textbook. Complete #1-3 on page 110.
- Watch the following two videos and create a quality outline of content:
- 1 - Orbitals and Sublevels
- 2 - Electron Configuration (Watch ONLY the first 7 minutes of this video)
- Complete a Science Fair Project Proposal Form, which can be found here (only ONE form needs to be filled out per group):
- Watch the following two videos and create a quality outline of content:
- 1 - Orbitals and Sublevels
- 2 - Electron Configuration (Watch ONLY the first 7 minutes of this video)
- Complete a Science Fair Project Proposal Form, which can be found here (only ONE form needs to be filled out per group):
Tuesday, October 23
Sections 9 & 11: Read pages 104 - 110 in your textbook. Complete #1-3 on page 110.
Section 10: Read chapter 4, section 1 (pg. 97-103, most of it is review) and answer questions 1-5 on page 103.
Also, below are the videos from today. Re-watch the first one, and make sure to watch the second one.
http://www.youtube.com/watch?v=7GTCus7KTb0
http://www.youtube.com/watch?v=Fw6dI7cguCg
**All: Make sure to check the website tomorrow (EVEN IF YOU DON'T HAVE MY CLASS TOMORROW). Your assignments for while I'm on Magis will be posted here.
Section 10: Read chapter 4, section 1 (pg. 97-103, most of it is review) and answer questions 1-5 on page 103.
Also, below are the videos from today. Re-watch the first one, and make sure to watch the second one.
http://www.youtube.com/watch?v=7GTCus7KTb0
http://www.youtube.com/watch?v=Fw6dI7cguCg
**All: Make sure to check the website tomorrow (EVEN IF YOU DON'T HAVE MY CLASS TOMORROW). Your assignments for while I'm on Magis will be posted here.
Monday, October 22
Sections 8: Read chapter 4, section 1 (pg. 97-103, most of it is review) and answer questions 1-6 on page 103.
Also, below are the videos from today. Re-watch the first one, and make sure to finish watching the second one (which we started in class).
http://www.youtube.com/watch?v=7GTCus7KTb0
http://www.youtube.com/watch?v=Fw6dI7cguCg
Section 9 & 11: Complete the questions the green packet (as specified in class; front page & #26-31 mc). Then, read chapter 4, section 1 (pg. 97-103, most of it is review) and answer questions 1-6 on page 103.
Also, here are the videos from today, if you'd like to watch them again:
http://www.youtube.com/watch?v=7GTCus7KTb0
http://www.youtube.com/watch?v=Fw6dI7cguCg
Section 10: Complete the assignment that was posted for Sections 9 & 11 on Friday
Also, below are the videos from today. Re-watch the first one, and make sure to finish watching the second one (which we started in class).
http://www.youtube.com/watch?v=7GTCus7KTb0
http://www.youtube.com/watch?v=Fw6dI7cguCg
Section 9 & 11: Complete the questions the green packet (as specified in class; front page & #26-31 mc). Then, read chapter 4, section 1 (pg. 97-103, most of it is review) and answer questions 1-6 on page 103.
Also, here are the videos from today, if you'd like to watch them again:
http://www.youtube.com/watch?v=7GTCus7KTb0
http://www.youtube.com/watch?v=Fw6dI7cguCg
Section 10: Complete the assignment that was posted for Sections 9 & 11 on Friday
Friday, October 19
Sections 9 & 11: Tonight you will take some notes based on the discussion we had in class today. You can find this unit's powerpoint at the bottom of the page. There is also a link to it under 'Homework Documents'. It can also be found in the 'tanzmanj' folder on the X: drive of the Xavier computers (chapter 4).
You should copy down notes for slides 1-13 into your notebook. PRINTING OUT THE SLIDES DOES NOT COUNT. This should help to clarify and reinforce the ideas we broached today in class. I will be checking your notebook - I hope to see some quality note taking skills.
You should also watch this video:
http://www.youtube.com/watch?v=-YYBCNQnYNM
*If you cannot get to the powerpoint online, send me an email and I will email you the ppt as an attachment.
You should copy down notes for slides 1-13 into your notebook. PRINTING OUT THE SLIDES DOES NOT COUNT. This should help to clarify and reinforce the ideas we broached today in class. I will be checking your notebook - I hope to see some quality note taking skills.
You should also watch this video:
http://www.youtube.com/watch?v=-YYBCNQnYNM
*If you cannot get to the powerpoint online, send me an email and I will email you the ppt as an attachment.
Thursday, October 18
Section 8: Tonight you will take some notes based on the discussion we had in class today. You can find this unit's powerpoint at the bottom of the page. There is also a link to it under 'Homework Documents'. It can also be found in the 'tanzmanj' folder on the X: drive of the Xavier computers (chapter 4).
You should copy down notes for slides 1-13 into your notebook. PRINTING OUT THE SLIDES DOES NOT COUNT. This should help to clarify and reinforce the ideas we broached today in class. I will be checking your notebook - I hope to see some quality note taking skills.
You should also watch this video:
http://www.youtube.com/watch?v=-YYBCNQnYNM
You should copy down notes for slides 1-13 into your notebook. PRINTING OUT THE SLIDES DOES NOT COUNT. This should help to clarify and reinforce the ideas we broached today in class. I will be checking your notebook - I hope to see some quality note taking skills.
You should also watch this video:
http://www.youtube.com/watch?v=-YYBCNQnYNM
Tuesday, October 16
**All: There will be extra help Thursday morning at 7:40 in room 3K2.
Section 11: Complete the assignment posted yesterday - these worksheets will help you study for Thursday's test.
Section 9: Complete today's lab, if you have not already. Also, study Chapter 3 for Thursday's test.
Section 10: Here is the data you need to complete the lab (this will help you study for Thursday):
-Station 1:
Cup of water mass: 81.2 g
Mass after a mouthful has been drunk: 24.7 g
-Station 2:
Mass of the chalk before you write your name: 45.73 g
Mass of the chalk after you write your name: 45.71g
-Station 3:
Mass of unknown metal + weighboat: 70.9 g
Mass of empty weighboat: 5.5 g
-Station 4:
Mass of unknown substance + weighboat: 89.5 g
Mass of empty weighboat: 5.5 g
Section 11: Complete the assignment posted yesterday - these worksheets will help you study for Thursday's test.
Section 9: Complete today's lab, if you have not already. Also, study Chapter 3 for Thursday's test.
Section 10: Here is the data you need to complete the lab (this will help you study for Thursday):
-Station 1:
Cup of water mass: 81.2 g
Mass after a mouthful has been drunk: 24.7 g
-Station 2:
Mass of the chalk before you write your name: 45.73 g
Mass of the chalk after you write your name: 45.71g
-Station 3:
Mass of unknown metal + weighboat: 70.9 g
Mass of empty weighboat: 5.5 g
-Station 4:
Mass of unknown substance + weighboat: 89.5 g
Mass of empty weighboat: 5.5 g
Monday, October 15
Gents,
I'm sorry I cannot be at school with you today. Here is your assignment:
-Under 'Homework Documents' you will find two worksheets; you should complete them both. Notice that the last page has the answers. This is to help you know whether or not you understand how to do these calculations. We will have a test on this material when I return, so make sure you are using the answer page to gauge your understanding. Come into next class prepared with questions, if you are confused.
I recommend you do this work together in school today, so you can help each other, if need be.
I'm sorry I cannot be at school with you today. Here is your assignment:
-Under 'Homework Documents' you will find two worksheets; you should complete them both. Notice that the last page has the answers. This is to help you know whether or not you understand how to do these calculations. We will have a test on this material when I return, so make sure you are using the answer page to gauge your understanding. Come into next class prepared with questions, if you are confused.
I recommend you do this work together in school today, so you can help each other, if need be.
Thursday, October 11
Section 8: Complete your Mole Practice worksheet #1-5, 9 & 10
Section 9: Finish your Mole Practice worksheet
Section 10: Read and complete the assignment that was listed for sections 8 & 11 yesterday.
Section 11: Make sure your Mole Practice sheet is perfect for Monday. Also, make sure you've read over your molar mass lab so that you are ready to go right away next class.
Section 9: Finish your Mole Practice worksheet
Section 10: Read and complete the assignment that was listed for sections 8 & 11 yesterday.
Section 11: Make sure your Mole Practice sheet is perfect for Monday. Also, make sure you've read over your molar mass lab so that you are ready to go right away next class.
Wednesday, October 10
Section 9: Complete #1-5 on the worksheet you received in class today
Sections 8 & 11: Watch the following videos - start about 5 minutes in for the first one (the other stuff you should know, but if you feel like you need a review, you're welcome to watch all of it):
http://www.youtube.com/watch?v=wrGhyhgwODo&feature=relmfu
http://www.youtube.com/watch?v=JQSdx7YfYsk
Then, find the molar mass of the following compounds:
Sections 8 & 11: Watch the following videos - start about 5 minutes in for the first one (the other stuff you should know, but if you feel like you need a review, you're welcome to watch all of it):
http://www.youtube.com/watch?v=wrGhyhgwODo&feature=relmfu
http://www.youtube.com/watch?v=JQSdx7YfYsk
Then, find the molar mass of the following compounds:
1) Ca(OH)2
2) Na3PO4
3) AgF
4) Fe3(PO4)2
5) Zn(C2H3O2)2
Use the chart we created in class (a similar one can be found on page 84 of your textbook) to
determine the mass in grams of each of the following:
a. 1.35 mol Fe
b. 24.5 mol O
c. 0.876 mol Ca
Calculate the number of moles of each compound:
a. 21.5 g CaCO3
b. 1.56 g NH3
c. 16.8 g Sr(NO3)2
Tuesday, October 9
Sections 8 and 10: Read pages 85-87 in your textbook. Pay extra attention to the sample problems. Complete practice problems 1-4 on page 85. The answers are in Appendix E, so you can see how you are doing. Then, complete section review problems #5-7 on page 87. Remember how we used conversion factors in class today!
Sections 9 and 11: Complete the Avagadro Goes to Court problem (price of one atom of Al). You should do this NEATLY on loose leaf. Here are the givens you will need:
Price per roll - $1.59
Good luck!
Sections 9 and 11: Complete the Avagadro Goes to Court problem (price of one atom of Al). You should do this NEATLY on loose leaf. Here are the givens you will need:
Price per roll - $1.59
Surface area of roll - 6.96 m2
Mass of Al per surface area - 17.2 g/m2
Molar mass - 26.9815 g/mol
Good luck!
For Tuesday, October 9
Sections 8, 9 and 10: Finish Exercise 2 on the back of your Mole Activity Sheet, if you have not already. Then read the case study titled "Avagadro Goes to Court", which can be found in the 'Homework Documents' section. On Tuesday, you will be given the same assignment as the students in the case study. The way to solve this problem, is very similar to the types of problems you did on your Mole Activity Sheet. You will work as a table, and will have one day to figure out the answer. Come in with a game plan! I recommend you look up the molar mass of Aluminum (measured in grams/mole). You will be given the opportunity to find the mass of an small, square sheet of foil. Realize that these two measurements (and their units) are major clues into how to solve this problem. Your preparedness, efforts in class and the accuracy of your answer will all be a part of your grade for this assignment.
Think critically! Exercise your brain!
Section 11: Read page 83 in your textbook. Then in your notebook, define 'mole', 'Avagadro's number' and 'molar mass'. Next, read the front of the 'What is a Mole?' worksheet, which can be found in the 'Homework Documents' section and complete Exercises 1 and 2 on the back.
**Note: a light year is a unit of distance, not time. It is the distance that light travels in a year. Since you are given the distance light travels in one second, you can calculate how far light travels in one year.
Think critically! Exercise your brain!
Section 11: Read page 83 in your textbook. Then in your notebook, define 'mole', 'Avagadro's number' and 'molar mass'. Next, read the front of the 'What is a Mole?' worksheet, which can be found in the 'Homework Documents' section and complete Exercises 1 and 2 on the back.
**Note: a light year is a unit of distance, not time. It is the distance that light travels in a year. Since you are given the distance light travels in one second, you can calculate how far light travels in one year.
Thursday, October 4
Sections 8 and 10: Read page 83 in your textbook. Then in your notebook, define 'mole', 'Avagadro's number' and 'molar mass'. Next, read the front of the 'What is a Mole?' worksheet you got in class, and complete Exercise 1 on the back (2 questions).
Wednesday, October 3
Sections 9-11: Using chapter 3 in your textbook, then answer questions 1-8 on page 89.
Tuesday, October 2
Sections 8 & 9: In the green packet you got today, answer the first 3 quesitons on the first page, the 'protons, neutrons and electrons' section on the second page, complete the definitions of isotope and atomic mass (bottom of page 2), draw the models of the nuclei on the top of page 3, and the 'matching' section on page 5.
Section 10: Your 5 re-worked testable questions are due tomorrow. Don't forget you also have your periodic table quiz!
Section 10: Your 5 re-worked testable questions are due tomorrow. Don't forget you also have your periodic table quiz!
Monday, October 1
Sections 8 & 9:
1) Using the editing and discussions we had today in class, rewrite your 10 testable questions into 5 high quality questions. Remember, the key to a good question, is that an experiment can be designed from it without the reader needing to ask for more information.
2) Under the 'Homework Documents' section you will find a History of the Atom worksheet. Using your textbook and the internet, answer the questions pertaining to Dalton, Thompson and Rutherford. You DO NOT need to do the section on Bohr (we'll get to him later).
Section 11:
Under the 'Homework Documents' section you will find a History of the Atom worksheet. Using your textbook and the internet, answer the questions pertaining to Dalton, Thompson and Rutherford. You DO NOT need to do the section on Bohr (we'll get to him later).
1) Using the editing and discussions we had today in class, rewrite your 10 testable questions into 5 high quality questions. Remember, the key to a good question, is that an experiment can be designed from it without the reader needing to ask for more information.
2) Under the 'Homework Documents' section you will find a History of the Atom worksheet. Using your textbook and the internet, answer the questions pertaining to Dalton, Thompson and Rutherford. You DO NOT need to do the section on Bohr (we'll get to him later).
Section 11:
Under the 'Homework Documents' section you will find a History of the Atom worksheet. Using your textbook and the internet, answer the questions pertaining to Dalton, Thompson and Rutherford. You DO NOT need to do the section on Bohr (we'll get to him later).
Thursday, September 27
All Sections: For next week complete:
-10 testable research topic questions. These should be typed and all viable options for science fair projects. Here's the website we talked about in class: http://www.experiment-resources.com/research-paper-question.html
-Fix any lingering issues with your Adopt an Element and color-coded periodic table. If you created a video, website, or anything else digital, make sure you email me your work by Sunday at 8pm.
-10 testable research topic questions. These should be typed and all viable options for science fair projects. Here's the website we talked about in class: http://www.experiment-resources.com/research-paper-question.html
-Fix any lingering issues with your Adopt an Element and color-coded periodic table. If you created a video, website, or anything else digital, make sure you email me your work by Sunday at 8pm.
Tuesday and Wednesday, September 25th and 26th
All Sections: By Thursday you should have completed the following:
1) Adopt an Element project. Instructions can be found in yesterday's post. Make sure to do the facts sheet AND the advertisement!
1) Adopt an Element project. Instructions can be found in yesterday's post. Make sure to do the facts sheet AND the advertisement!
**Note: You DO NOT have to do a paper advertisement. You are welcome to make a video of you as a salesman, make a powerpoint, fliers, prezi presentations, etc. Be creative!
Really try to sell me your element!
Here's an example video (even though it is funny, notice that it is missing important data like the atomic mass, atomic number, etc):
2) On the back of the periodic table you got in class, define the words below. Each of these words corresponds to a section on the periodic table; use the definitions section as a key, and color each section of the table that corresponds.
For example, the first column of the periodic table (group 1) is known as alkali metals. Once you've defined it, pick a color and put a small box of that color next to that definition. Then, color in all the alkali metals in that color. To give you some idea of what I mean, on ptable.com all of the alkali metals are in orange - you should do something similar for each defined word.
Words to define:
Alkali Metals
Alkaline Earth Metals
Transition Metals
Metalloids
Halogens
Non-Metals
Noble Gases
3) Study the first 25 elements on the periodic table. If you were given a blank periodic table, you should be able to fill in the names and elemental symbols of the first 25.
Monday, September 24
Sections 9-11: READ ALL INSTRUCTIONS CAREFULLY:
You will find the two documents you need under the 'Homework Documents' section. One of them is your assignment, titled Adopt an Element. FOR TONIGHT, YOU ONLY NEED TO COMPLETE THE FACTS SHEET (2nd page). The other, is a spreadsheet that has the element that has been assigned to you. You cannot work on any element you'd like, so make sure you find your name and corresponding element.
You will find the two documents you need under the 'Homework Documents' section. One of them is your assignment, titled Adopt an Element. FOR TONIGHT, YOU ONLY NEED TO COMPLETE THE FACTS SHEET (2nd page). The other, is a spreadsheet that has the element that has been assigned to you. You cannot work on any element you'd like, so make sure you find your name and corresponding element.
Friday, September 21
Section 9: Quiz corrections due Monday
Section 10: Read (don't skim, READ) pages 6-14 in your textbook. Then answer questions 1-5 on page 14.
**For extra credit**: By Tuesday (this due date is for section 10 only), you can read the 'cross-disciplinary connection' section on page 15 and answer the two questions. This should be typed.
Section 11: Complete you labs and quiz corrections
Section 10: Read (don't skim, READ) pages 6-14 in your textbook. Then answer questions 1-5 on page 14.
**For extra credit**: By Tuesday (this due date is for section 10 only), you can read the 'cross-disciplinary connection' section on page 15 and answer the two questions. This should be typed.
Section 11: Complete you labs and quiz corrections
Thursday, September 20
Sections 8, 9 and 11: Read (don't skim, READ) pages 6-14 in your textbook. Then answer questions 1-5 on page 14. Section 8, don't forget, you also have quiz corrections due tomorrow.
**For extra credit**: By Monday, you can read the 'cross-disciplinary connection' section on page 15 and answer the two questions. This should be typed.
**For extra credit**: By Monday, you can read the 'cross-disciplinary connection' section on page 15 and answer the two questions. This should be typed.
Wednesday, September 19
All Sections: Complete the white worksheet handed out in class today (front and back)
Friday, September 14
All: Remember that my chemistry classes are canceled on Monday. All of your work for the weekend and Monday can be found below. Please use your time wisely and do work that you're proud of.
Section 8: By Tuesday, you should complete all of the following:
Section 8: By Tuesday, you should complete all of the following:
- Sig Fig lab
- Read pages 44-46 (stop at sig fig section) in you textbook. Use that information to complete your pink worksheet, as well as, #26-28, 35, on 36 on page 60.
- Complete your green worksheet
- Sig Fig lab
- #2-4 on your pink worksheet (% error)
- #26-28, 35, on 36 on page 60 of your textbook.
- Complete your green worksheet
- Read pages 44-50 in your textbook. Use what you've read, as well as, your notes from class to complete you yellow AND pink worksheets.
- In your notebook, complete #24-29, 35, 36 on pages 59-60 in your textbook.
- #2-4 on your pink worksheet
- Complete your green worksheet
Wednesday, September 12
Section 8: Finish your yellow worksheet
Section 9: Complete #2 and 6 on your yellow sheet. Also, #3 on the green sheet you received in class yesterday (the heading says chapter 2 review).
Section 11: Finish the yellow worksheet - since we didn't get to do a ton of practice problems together in class, I suggest you do your work in pencil so that you can make corrections when we go over the homework tomorrow in class.
**Sections 9-11, don't forget that your article write-up is also due tomorrow!!
Section 9: Complete #2 and 6 on your yellow sheet. Also, #3 on the green sheet you received in class yesterday (the heading says chapter 2 review).
Section 11: Finish the yellow worksheet - since we didn't get to do a ton of practice problems together in class, I suggest you do your work in pencil so that you can make corrections when we go over the homework tomorrow in class.
**Sections 9-11, don't forget that your article write-up is also due tomorrow!!
Tuesday, September 11
Section 8:
Section 11:
- Complete the back of the conversion worksheet (white), as well as, finish #1 all parts from the scientific notation/sig dig worksheet (yellow).
- Articles write-up is due tomorrow (note that more links have been added to the current events section.
Complete the back of the conversion worksheet (white).
Section 11:
- Complete the back of the conversion worksheet (white), as well as, finish #1 all parts from the scientific notation/sig dig worksheet (yellow).
Monday, September 10
All Sections: Using the "Current Events" links below, find at least 3 articles that really interest you. Type up a short synopsis of each (make sure to cite the title, author and website). Finally, see if you can find a common thread among the articles you've chosen. At the bottom of your typed summary page, based on your reflection of your chosen articles, write a few sentences about what scientific topics you think might interest you the most. Due Wednesday for Section 8; due Thursday for all other sections.
Welcome to Chemistry!
This webpage is going to be your key to success in chemistry. Everything you need, you can find here! You should check the website EVERYDAY! (In fact, bookmark it right now).
Your first assignment is to find an object in your house that you can measure in three different ways. What the heck does that mean??? Well, think of yourself, for example. You can tell someone how tall you are, how heavy you are, how much space you take up. Even though all of these things are descriptive of you, they would all be measured in very different ways.
Once you've chosen your object, write in your binder the following information:
What is it?
Why did you choose it?
1st measurement and what instrument/method you used to obtain it.
2nd measurement and what instrument/method you used to obtain it.
3rd measurement and what instrument/method you used to obtain it.
**Make sure to include units and be as accurate as possible!
Your first assignment is to find an object in your house that you can measure in three different ways. What the heck does that mean??? Well, think of yourself, for example. You can tell someone how tall you are, how heavy you are, how much space you take up. Even though all of these things are descriptive of you, they would all be measured in very different ways.
Once you've chosen your object, write in your binder the following information:
What is it?
Why did you choose it?
1st measurement and what instrument/method you used to obtain it.
2nd measurement and what instrument/method you used to obtain it.
3rd measurement and what instrument/method you used to obtain it.
**Make sure to include units and be as accurate as possible!
Final Review
All: The review session will take place on Monday at 1:30pm in room 3K3. I know you only have a morning test, so please use the down time between to eat, study (maybe organize a study group in the library), organize your questions, etc.
Please try to arrive 5-10 minutes early so we can get organized and start working on content at 1:30.
If you have any questions before Monday, please feel free to email me.
Please try to arrive 5-10 minutes early so we can get organized and start working on content at 1:30.
If you have any questions before Monday, please feel free to email me.
Tuesday, June 5
All: Here is the teacher evaluation. If you plan to fill it out, please do so by the end of the week. Many thanks!
http://www.quia.com/sv/582146.html
http://www.quia.com/sv/582146.html
Monday, June 4
•
All Sections: Follow all instructions carefully. Below you will find some information on half-life; look it over. When you are done, complete the worksheet on half-life, which can be found in the 'Homework' section (the answer to number one is 1.125 grams).
-HALF-LIFE is the time that it takes for 1/2 a sample to decompose.
Here's a graph of the half-life of the Oxygen-15 isotope:
For each duration (half-life), one half of the substance decomposes.
For example: Ra-234 has a half-life of 3.6 days. If you start with 50 grams of Ra-234 after 3.6 days you will have 25 grams left. After 7.2 days, 12.5 grams and after 10.8 days, 6.25 grams, and so on.
Q: The half life of I-123 is 13 hr. How much of a 64 mg sample of I-123 is left after 39 hours?
A: 39/13 = 3...1 half life, 64 > 32. 2nd half life, 32 >16. 3rd half life 16 > 8mg
For Monday, June 4
All Sections: There are two parts to your HW for Monday.
1) Under the 'Homework' section you will find a document that you should print out and complete for your next class - I will be collecting it.
2) There is a powerpoint at the bottom of this page. Make sure you have notes up to slide 17 in your notebook (some of you may already have the first few slides).
Hanno un buon weekend i miei studenti bravi!!
1) Under the 'Homework' section you will find a document that you should print out and complete for your next class - I will be collecting it.
2) There is a powerpoint at the bottom of this page. Make sure you have notes up to slide 17 in your notebook (some of you may already have the first few slides).
Hanno un buon weekend i miei studenti bravi!!
Thursday, May 31
Section 1: Use this image to fill in tables #23 and 24 in your packet. Then answer questions 25 and 26:
Section 2: Complete #14,15, 18-22, 25 & 26 in your packet.
Section 2: Complete #14,15, 18-22, 25 & 26 in your packet.
Wednesday, May 30
Section 1: Complete problems 14, 15, 18-22 in your O-Chem packet.
Section 2:
Draw these: 2-ethyl-1-pentene, 2,3-dimethyl-2-butene
Name these:
Section 2:
Draw these: 2-ethyl-1-pentene, 2,3-dimethyl-2-butene
Name these:
Thursday, May 24
All: At the bottom of this page, you will find a hydrocarbon naming powerpoint. By Tuesday, ALL of the notes from that powerpoint should be in your notebook. There are 6 hydrocarbons on the last two slides that you should draw and name in your notebook (one of them is done for you as an example). Feel free to use your textbook to help you. Also, in your organic chemistry packet, answer the two questions on defining and describing isomers, both structural and geometric.
Enjoy your long weekend!
Enjoy your long weekend!
Wednesday, May 23
Section 1: Here are the rules for writing the molecular formulas to fill in for number 2:
Alkanes: CnH2n+2
Alkenes: CnH2n
Alkynes: CnH2n-2
Next you should look up the prefixes (Table 3 on page 718 in your textbook).
Finally you should try to fill in charts 4,5 and 6. Here are some answer to get you started:
2 Carbons - Ethane (C2H6), Ethene (C2H4), Ethyne (C2H2)
3 Carbons - Propane (C3H8)...
Section 2: Complete #5 & 6 in the Organic Chemistry packet
Alkanes: CnH2n+2
Alkenes: CnH2n
Alkynes: CnH2n-2
Next you should look up the prefixes (Table 3 on page 718 in your textbook).
Finally you should try to fill in charts 4,5 and 6. Here are some answer to get you started:
2 Carbons - Ethane (C2H6), Ethene (C2H4), Ethyne (C2H2)
3 Carbons - Propane (C3H8)...
Section 2: Complete #5 & 6 in the Organic Chemistry packet
Wednesday, May 16
All: Complete your pH take home test for Friday. If you missed class today, you can get a take home test on the door of 3K3.
Monday, May 14
Section 1: Complete Acid - Base post lab questions. If you did not complete a section you may get DATA from another group - all analysis should be unique for every student! You can skip questions12, 16 and 19 of the post-lab, we will go over them in class.
Friday, May 11
All: Finish the worksheet I handed out in class today.
**If you missed class today, you must come to a make-up session Monday morning at 7:40am in room 3K3 - see you there!**
**If you missed class today, you must come to a make-up session Monday morning at 7:40am in room 3K3 - see you there!**
Monday, May 7
Juniors: Thanks for your great debate today!
For next Monday, do some research on 'designer babies' (I have included a link below to get you started). Then, type a one page reaction paper, addressing the following:
For next Monday, do some research on 'designer babies' (I have included a link below to get you started). Then, type a one page reaction paper, addressing the following:
- Do you believe it to be an ethical practice? Why or why not?
- What do you believe it would mean for future generations, both socially and evolutionarily, if this becomes common practice?
- What is the ethical role of the doctors and researchers involved with this process?
Friday, May 4th
Juniors: Here are some tools to help you prepare for Monday's discussion:
Our discussion will focus on the following questions:
1) To whom does the burden of 'ethics' fall? Scientist doing the research, politicians funding and applying science and technology in policy or philosophers integrating ethics and science?
2) Which of the aforementioned parties do you think have the loudest voice?
3) Are there any research methods, or topics that are too immoral to pursue? (e.g. human experimentation)
4) Is it possible to pursue the purest desire to understand the mysteries of the universe and maintain a lens of social ethics?
5) Are there any particular events, statements or arguments that really struck you? Why do you think that is?
What does ethics mean to contemporary scientist:
http://temp.onlineethics.org/codes/ACScode.html
To help you understand the power of the bomb:
http://www.blogger.com/goog_2139632769
http://www.youtube.com/watch?v=ppgdBI31-lo
The decision to drop the bomb:
http://www.ushistory.org/us/51g.asp
http://www.doug-long.com/oppie.htm
Other sides of the story:
http://www.unmuseum.org/nbomb.htm
http://www.nybooks.com/articles/archives/2000/oct/19/heisenberg-in-copenhagen/?pagination=false
I've given you plenty to work with but feel free to also bring your own research to the discussion. You've been studying ethics in religion; remember that a 'because I think/feel it's right' mentality is not enough to support a solid, academic discussion points. Be prepared to back up your opinions with facts!
Our discussion will focus on the following questions:
1) To whom does the burden of 'ethics' fall? Scientist doing the research, politicians funding and applying science and technology in policy or philosophers integrating ethics and science?
2) Which of the aforementioned parties do you think have the loudest voice?
3) Are there any research methods, or topics that are too immoral to pursue? (e.g. human experimentation)
4) Is it possible to pursue the purest desire to understand the mysteries of the universe and maintain a lens of social ethics?
5) Are there any particular events, statements or arguments that really struck you? Why do you think that is?
What does ethics mean to contemporary scientist:
http://temp.onlineethics.org/codes/ACScode.html
To help you understand the power of the bomb:
http://www.blogger.com/goog_2139632769
http://www.youtube.com/watch?v=ppgdBI31-lo
The decision to drop the bomb:
http://www.ushistory.org/us/51g.asp
http://www.doug-long.com/oppie.htm
Other sides of the story:
http://www.unmuseum.org/nbomb.htm
http://www.nybooks.com/articles/archives/2000/oct/19/heisenberg-in-copenhagen/?pagination=false
I've given you plenty to work with but feel free to also bring your own research to the discussion. You've been studying ethics in religion; remember that a 'because I think/feel it's right' mentality is not enough to support a solid, academic discussion points. Be prepared to back up your opinions with facts!
For Monday April, 30
Kairos Students: Using your textbook and the internet, answer the following questions:
pg. 491, #1, 3, 5
What does pH mean? (should be more than a sentence)
Make a list of acids/bases, one for each number on the pH scale.
pg. 491, #1, 3, 5
What does pH mean? (should be more than a sentence)
Make a list of acids/bases, one for each number on the pH scale.
Friday, April 20
All: Complete the two pages (as specified in class) in your chapter 12 packet on the solubility curve graph.
Wednesday, April 18
Section 1: Complete your lab, if you have not already
Section 2: Complete post lab questions 1,3,5 and 6
Section 2: Complete post lab questions 1,3,5 and 6
Tuesday, April 17
All: Use your textbook to complete the first 3 pages of your chapter 12 packet (front and back of page one, and front of page two).
**Wake up and focus in...remember - constant vigilance!**
**Wake up and focus in...remember - constant vigilance!**
Tuesday, April 3
Section 2: Complete the worksheet given out in class today. Also, if you want to do test corrections, here are the molar enthalpy questions:
1) How much energy is absorbed when 16.3 g of ice melts?
2) Calculate the quantity of energy released when 783 g of steam condenses.
3) A certain substance has a molar enthalpy of vaporization of 31.6 kJ/mol. How much of the substance is in a sample that requires 57.0 kJ to vaporize? (answer should be in moles)
1) How much energy is absorbed when 16.3 g of ice melts?
2) Calculate the quantity of energy released when 783 g of steam condenses.
3) A certain substance has a molar enthalpy of vaporization of 31.6 kJ/mol. How much of the substance is in a sample that requires 57.0 kJ to vaporize? (answer should be in moles)
∆Hv = 40.79 kJ/mol ∆Hf = 6.009 kJ/mol
Monday, April 2
All: Type a one page response paper to today's video (Times New Roman, 12 pt, 1.5 line spacing). Address the things you found interesting, surprising, were confused about, questions you may have, how much times have changed, etc.
Thursday, March 29 - Friday, March 30
Section 2: Watch these two videos -
Intro to Gas Laws 1
Intro to Gas Laws 2
Then, do the following:
1) Come up with at least 5 examples of situations that you have witnessed in everyday life, which validate the properites described in these gas laws.
2) Now that you have three equations that relate pressure vs. volume, pressure vs. temperature and volume vs. temperature, see if you can create one equation that involves all three variables.
3) But wait! There's a flaw in your equation! There's a quantity missing that is keeping these equation from being sound for all types of gases. What is it???
4) Complete the worksheet handed out in class yesterday
Section 1: The videos above can also help you with your worksheets, since we moved pretty quickly through our notes on Gas Laws. I intentionally used the same examples in class as they use in the video, so if you need visuals of these phenomena, the videos are a great resource!
**Any absent student can pick up extra worksheets in the HMO on Friday.
Intro to Gas Laws 1
Intro to Gas Laws 2
Then, do the following:
1) Come up with at least 5 examples of situations that you have witnessed in everyday life, which validate the properites described in these gas laws.
2) Now that you have three equations that relate pressure vs. volume, pressure vs. temperature and volume vs. temperature, see if you can create one equation that involves all three variables.
3) But wait! There's a flaw in your equation! There's a quantity missing that is keeping these equation from being sound for all types of gases. What is it???
4) Complete the worksheet handed out in class yesterday
Section 1: The videos above can also help you with your worksheets, since we moved pretty quickly through our notes on Gas Laws. I intentionally used the same examples in class as they use in the video, so if you need visuals of these phenomena, the videos are a great resource!
**Any absent student can pick up extra worksheets in the HMO on Friday.
Tuesday, March 27
Section 2: Check you email for the answer key to the review sheet. Also, check this out!...
http://www.videojug.com/film/how-to-suck-an-egg-into-a-bottle
http://www.videojug.com/film/how-to-suck-an-egg-into-a-bottle
Monday, March 26
Section 1: For quiz practice, complete the following problems from your textbook:
pg. 353 #20, 22, pg. 354 #27, 28, 30
So that you can check your work -
Answers: 20 - 84.3 kJ/mol.
22a - 21.8 mol, 22b - 253 g/mol.
27 - 8.85 kJ/mol.
28 - 2.65 x 10^5 kJ. 30 - 0.241g.
pg. 353 #20, 22, pg. 354 #27, 28, 30
So that you can check your work -
Answers: 20 - 84.3 kJ/mol.
22a - 21.8 mol, 22b - 253 g/mol.
27 - 8.85 kJ/mol.
28 - 2.65 x 10^5 kJ. 30 - 0.241g.
Wednesday, March 21
All: Liquid crystals are substances that possess the combined properties of both liquids and crystals (remember solids can have a crystalline structure!). Do some research on liquid crystals and write a half to full page response considering the following:
-What constitutes a 'liquid crystal'? What kind of characteristics must a substance have to fall into this category?
-Give some examples of liquid crystals.
-What various uses are being found for these liquid crystals?
**Take this as an opportunity to explore science outside of our classroom environment, instead of viewing it as a chore. Include some sources at the bottom of your paper. I look forward to hearing about your research!**
-What constitutes a 'liquid crystal'? What kind of characteristics must a substance have to fall into this category?
-Give some examples of liquid crystals.
-What various uses are being found for these liquid crystals?
**Take this as an opportunity to explore science outside of our classroom environment, instead of viewing it as a chore. Include some sources at the bottom of your paper. I look forward to hearing about your research!**
Thursday, March 15
Section 2: Use your notes, your textbook and the powerpoint at the bottom of the page to complete 'Liquids and Solids Homework', which can be found under homework documents.
**Make up test will take place Tuesday morning at 7:30 in room 3K3**
**Make up test will take place Tuesday morning at 7:30 in room 3K3**
Wednesday, March 14
Section 1: Make-up test is tomorrow morning, 7:30, room 3K3
Section 2: In your notebook, complete section review questions 1-6 on page 332 of your textbook. (Use your notes and section 1 of the textbook as your resources.)
Section 2: In your notebook, complete section review questions 1-6 on page 332 of your textbook. (Use your notes and section 1 of the textbook as your resources.)
Tuesday, March 13
Section 1: In your notebook, complete section review questions 1-6 on page 332 of your textbook. (Use your notes and section 1 of the textbook as your resources.)
Tuesday, March 6
All: Complete the chart on page 's8' of your lab manual. Remember that the volume of one mole of any gas (at STP) is 22.4mL. At the bottom of the page, write which reactant you believe to be the limiting reagent (you should use stoichiometry AND your lab observations to prove your hypothesis).
Monday, March 5
Section 1: As discussed in class, complete first two rows of data chart on page 'S8' on your lab.
Thursday, March 1
Section 1: On the worksheet handed out today, set up proportions for #3 (all parts) between moles of reactants in the balanced equation (coefficients!), compared to one of the given amounts of reactant. Like this:
I chose 3.6 mol as my given for no particular reason...if you want to use 5.3 - go for it!
**Do this assignment in pencil in case you make a mistake!
I chose 3.6 mol as my given for no particular reason...if you want to use 5.3 - go for it!
**Do this assignment in pencil in case you make a mistake!
Tuesday, February 28
All: Study! Here are some extra stoich problems for you to study from. I'll be in 3K3 tomorrow morning.
1) Hydrogen and oxygen react under a specific set of conditions to produce water:
2H2 + O2 --------> 2H2O
a) How many moles of hydrogen would be required to produce 15.0 mol water?
b) How many grams of oxygen would be required to do the same?
2) If 4.50 mol of ethane, C2H6, undergo combustion according to the following:
C2H6 + O2 ---------> CO2 + H2O
a) How many moles of oxygen are required?
b) What mass (in grams) of each product is produced?
Answers: 1a) 15.0 mol hydrogen, 1b) 240 g oxygen, 2a) 15.8 mol oxygen, 2b) 396 g carbon dioxide and 243 g of water.
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