Mass to Mass Stoichiometry Problems

In the following problems, calculate how much of the indicated product is made. Show all your work.

1) LiOH + HBr à LiBr + H2O

If you start with ten grams of lithium hydroxide, how many grams of lithium bromide will be produced?

 

 

 

 

 

2) C2H4 + 3 O2 à 2 CO2 + 2 H2O

If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced?

 

 

 

 

 

3) Mg + 2 NaF à MgF2 + 2 Na

If you start with 5.5 grams of lithium chloride, how many grams of calcium chloride will be produced?

 

 

 

 

 

4) 2 HCl + Na2SO4 à 2 NaCl + H2SO4

If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced?

Mass to Mass Stoichiometry Problems – Answer Key

In the following problems, calculate how much of the indicated product is made. Show all your work.

1) LiOH + HBr à LiBr + H2O

If you start with ten grams of lithium hydroxide, how many grams of lithium bromide will be produced? 36.3 grams

 

 

 

 

 

2) C2H4 + 3 O2 à 2 CO2 + 2 H2O

If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced? 141.4 grams

 

 

 

 

 

3) Mg + 2 NaF à MgF2 + 2 Na

If you start with 5.5 grams of lithium chloride, how many grams of calcium chloride will be produced? 9.3 grams

 

 

 

 

 

4) 2 HCl + Na2SO4 à 2 NaCl + H2SO4

If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced? 26.9 grams