1) 8 Fe + S8 ---> 8 FeS
a) What mass of iron is needed to react with 16.0 grams of sulfur?
b) How many grams of FeS are produced?
2) Cu + 2 AgNO3 ---> Cu(NO3)2 + 2 Ag
a) How many moles of Cu are needed to react with 3.50 moles of AgNO3?
b) If 89.5 grams of Ag were produced, how many grams of Cu reacted?
Section 4: Complete the following:
1) Given the following equation: 2 K + Cl2 → 2 KCl
a) How many moles of KCl is produced from 2.50 g of K?
b) How many moles of KCl are produced from 1.00 g of Cl2?
2) Given the following equation: Na2O + H2O → 2 NaOH
a) How many moles of NaOH is produced from 120. grams of Na2O?
b) How many moles of Na2O are required to produce 160. grams of NaOH?
3) Given the following equation: Cu + 2 AgNO3 ---> Cu(NO3)2 + 2 Ag
a) How many moles of Cu are needed to react with 3.50 moles of AgNO3?
b) If 89.5 grams of Ag were produced, how many grams of Cu reacted?
4) Molten iron and carbon monoxide are produced in a blast furnace by the reaction of iron(III) oxide and pure carbon.
a) Write and balance the equation for the reaction.
b) If 25.0 grams of pure Fe2O3 is used, how many moles of iron can be produced?
5) The average human requires 120.0 grams of glucose (C6H12O6) per day. How many grams of
3) Given the following equation: Cu + 2 AgNO3 ---> Cu(NO3)2 + 2 Ag
a) How many moles of Cu are needed to react with 3.50 moles of AgNO3?
b) If 89.5 grams of Ag were produced, how many grams of Cu reacted?
4) Molten iron and carbon monoxide are produced in a blast furnace by the reaction of iron(III) oxide and pure carbon.
a) Write and balance the equation for the reaction.
b) If 25.0 grams of pure Fe2O3 is used, how many moles of iron can be produced?
5) The average human requires 120.0 grams of glucose (C6H12O6) per day. How many grams of
CO2 (in the photosynthesis reaction) are required for this amount of glucose?