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 + H_{2}O

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

2) C_{2}H_{4 }+ 3 O_{2} à
2 CO_{2} + 2 H_{2}O

If you start with 45 grams of ethylene (C_{2}H_{4}), how many grams of carbon dioxide will be produced?

3) Mg + 2 NaF à
MgF_{2} + 2 Na

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

4) 2 HCl + Na_{2}SO_{4} à
2 NaCl + H_{2}SO_{4}

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 + H_{2}O

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

2) C_{2}H_{4 }+ 3 O_{2} à
2 CO_{2} + 2 H_{2}O

If you start with 45 grams of ethylene (C_{2}H_{4}), how many grams of carbon dioxide will be produced? **141.4 grams**

3) Mg + 2 NaF à
MgF_{2} + 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 + Na_{2}SO_{4} à
2 NaCl + H_{2}SO_{4}

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