## Even More Example Problems!

For the following questions, do your work on paper and check the answer key to see if you are right. Remember, your answer can differ by a little bit depending on how you rounded your decimals.

1. For the balanced equation C3H6+3O2=>3CO+3H2O,

if the reaction of 21.3 grams of O2 produces a 47.3% yield, how many grams of CO would be produced ?

check your answer!

2. For the balanced equation 2C6H6+15O2=>12CO2+6H2O,

if the reaction of 9.86 grams of C6H6 produces 4.52 grams of H2O, what is the percent yield?

check your answer!

3. For the balanced equation 2C2H3O2F+3O2=>4CO2+2H2O+2HF,

if the reaction of 24.1 grams of O2 produces a 55.7% yield, how many grams of HF would be produced ?

check your answer!

4. For the balanced equation 2C4H8O+11O2=>8CO2+8H2O,

if the reaction of 54.7 grams of O2 produces 16.0 grams of H2O, what is the percent yield?

check your answer!

5. For the balanced equation Fe3O4+4H2=>3Fe+4H2O,

if the reaction of 24.8 grams of H2 produces a 63.7% yield, how many grams of H2O would be produced ?

check your answer!

6. For the balanced equation 2NH3+CO2=>CO(NH2)2+H2O,

if the reaction of 81.9 grams of CO2 produces 26.7 grams of H2O, what is the percent yield?

check your answer!

7. For the balanced equation K2O+H2O=>2KOH,

if the reaction of 27.5 grams of K2O produces a 69.5% yield, how many grams of KOH would be produced ?

check your answer!

8. For the balanced equation C6H5N2Cl=>C6H5Cl+N2,

if the reaction of 63.8 grams of C6H5N2Cl produces 8.35 grams of N2, what is the percent yield?

check your answer!

9. For the balanced equation 2C4H10O2+11O2=>8CO2+10H2O,

if the reaction of 94.4 grams of O2 produces a 72.3% yield, how many grams of H2O would be produced ?

check your answer!

10. For the balanced equation 2C6H4Cl2+13O2=>12CO2+2H2O+4HCl,

if the reaction of 52.8 grams of O2 produces 31.7 grams of CO2, what is the percent yield?

check your answer!