Sections 3 & 6: Complete the back of the baking soda/vinegar lab. Also, see yesterday's posts for sections 1 & 2 for the assignment due next Thursday.
Kairos Students: Welcome back! Watch the videos below and then complete the Quia assignment 'Stoich Check-In'. Make sure to read the instructions carefully!! You must complete the quia assignment by Wednesday.
Stoich Help 1
Stoich Help 2
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Thursday, January 30
Sections 1 & 2: Under homework docs, you will find the case study you must complete, on loose-leaf, by next Thursday. You will also need the information in this photo (the ruler reads 8 in)....
Section 3: Complete the worksheet you started for homework last night.
Here's an example of a mass to mass conversion problem (#5B):
Section 6: Answer the following questions on a piece of loose-leaf paper:
1. Calculate the mass, in grams, of 5.00 mol lead oxide (PbO)
Section 7: Complete the worksheet you received at the end of class today.
Section 3: Complete the worksheet you started for homework last night.
Here's an example of a mass to mass conversion problem (#5B):
Section 6: Answer the following questions on a piece of loose-leaf paper:
1. Calculate the mass, in grams, of 5.00 mol lead oxide (PbO)
2. Calculate the number of molecules in 0.700 g sodium bromide
(NaBr)
3. Calculate the amount of grams in 0.950 mol hydrogen sulfide (H2S)
4. Calculate the number of molecules in 6.00 mol beryllium
fluoride (BeF)
5. Given the following equation: 2 K + Cl2 ---> 2 KCl
a. How many grams of KCl is produced from 2.50 g of K and excess Cl2 ?
b. How many grams of
KCl
is produced from 1.00 g of Cl2 and excess K ?
6. Given the following equation: Na2O + H2O ---> 2 NaOH
a. How many grams of NaOH is produced from 1.20 x 102 grams of Na2O?
b How many grams of Na2O are required to produce 1.60 x 102 grams of NaOH?
Section 7: Complete the worksheet you received at the end of class today.
Wednesday, January 29
Sections 1, 2 & 6: Complete the Stoich WS #1 that we worked on in class today.
Here's an example of a mass to mass conversion problem (#5B):
Section 7: Complete these 3 problems in your notebook. Use a pencil!!!
Here's an example of a mass to mass conversion problem (#5B):
Section 7: Complete these 3 problems in your notebook. Use a pencil!!!
1.
Write the balanced equation for the combustion of ethyl alcohol (C2H5OH).
If
3.662 moles of ethyl alcohol are burned, how many moles of water can be formed?
2.
Given: 2 Al(s) + 6 HCl(aq) ® 2 AlCl3(aq) + 3 H2(g)
How
many grams of aluminum must be used to produce 5.00 grams of hydrogen gas?
3.
Using the equation in question 2 above, how many moles of aluminum chloride can
be obtained from the reaction of 25.7 g of hydrochloric acid?
Tuesday, January 28
Sections 1, 2, 3 & 6: Write out the balanced chemical equations (part A) for all questions on the Stoichiometry WS #1. Also answer 3a & b (use your solubility chart) DO NOT do any other step!!
Section 7: Answer the following questions on a piece of loose-leaf paper:
Section 7: Answer the following questions on a piece of loose-leaf paper:
1) How many molecules are there in 0.655 moles
of C6 H14?
2) How many moles are there in 2.35 x 1024 molecules of water?
3) How many grams does 5.60 x 1022 molecules of SiO2 weigh?
4) How many molecules
are there in 21.6 grams of CH4?
Monday, January 27
All Sections: Complete the worksheet from class today and answer the 3 questions below:
1)
How many moles are in 3.4 x 1023
molecules of H2SO4?
2)
How many molecules are in 25 g of NH3?
3)
How many grams are in 8.2 x 1022 molecules
of N2I6?
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