1. How many moles of water are made by
2 C6H O2 → 12 CO2 + 6 H2O
How many moles of water are made by
burning 0.35 moles of C6H6?
6 mol H2O = 3 = X
2 mol C6H
X = 1.1 mol H2O

2. What is the mole ratio between the products? Label with the formulas.
2 C6H O2 → 12 CO2 + 6 H2O
What is the mole ratio between the products? Label with the formulas.
12 CO2 = 2 CO H2O = 1 H2O
6 H2O H2O or CO2 2 CO2

3. How many grams of carbon dioxide are
2 C6H O2 → 12 CO2 + 6 H2O
How many grams of carbon dioxide are
made by burning 18.0 g of C6H6?
2 C6H6 = 1 C6H6 = g C6H6 = g
12 CO CO g CO X
X = 60.9 g CO2

4. 2 C6H O2 → 12 CO2 + 6 H2O
If the actual lab result from burning 18.0g C6H6 is 45.6 grams CO2, how much is the % yield?
% yield = Actual (lab) result x 100 % Theoretical (calculated)
% yield = 45.6 g x 100 = %
60.9 g

5. 2 C6H O2 → 12 CO2 + 6 H2O
How many grams of water are made by burning 78.0 g of C6H6 with g of oxygen?
2 mol C6H6 = 156 g C6H6 = 78.0 g
6 mol H2O 108 g H2O X
X = 54.0 g H2O
15 mol O2 = 480 g O2 = g O2
6 mole H2O g H2O X
X = 49.5 g H2O