Limiting Reagents

Finding Limiting Reagents Practice Problems

*Please note that O2 is the same as O₂and C6H4Cl2 is the same as C₆H₄Cl₂(each of these problems are just formatted differently to increase your understanding of these problems)*

1. For the balanced equation shown below, what would be the limiting reagent if 29.5 grams of ClL4 were reacted with 9.92 grams of 02?

CCl4 + O2 --> ~~C02 + 2Cl2~~ (Hint - remember to ignore the right side of each equation. This is the last reminder.)

Is the limiting reagent ClL4 or O2

2. For the balanced equation below, what would be the limiting reagent if 47.8 grams of C2H3O2Cl were reacted with 43.5 grams of O2?

2C2H3O2Cl + 3O2 --> 4CO2 + 2H2O + HCl

Is the limiting reagent C2H3O2Cl or O2

3. For the balanced equation below, what would be the limiting reagent if 39.8 grams of C2H3Br3 were reacted with 25.1 grams of O2?

4C2H3Br3 + 11O2 --> 8CO2 + 6H20 + 6Br2

Is the limiting reactant C2H3Br3 or O2

4. For the balanced equation below, what would be the limiting reagent if 27.2 grams of C2H3Cl3 were reacted with 20.3 grams of O2?

C2H3Cl3 + 2O2 --> 4CO2 + 6HO4 + ClO

Is the limiting reagent C2H3Cl3 or O2

5. For the balanced equation below, what would be the limiting reagent if 3.91 grams of SiO2 were reacted with 3.63 grams of C?

SiO2 + 3C --> 2SiC + O2C

Is the limiting reagent SiO2 or C

6. For the balanced equation below, what would be the limiting reagent if 5.08 grams of C6H4Cl2 were reacted with 4.07 grams of O2?

2C6H4Cl2 + 13O2 --> 4CO2 + 6HO4 + ClO2

Is the limiting reagent C6H4Cl2 or O2

7. For the balanced equation below, what would be the limiting reagent if 21 grams of ZnS were reacted with 13.6 grams of O2?

2ZnS + 3O2 --> ZnO + SO2

Is the limiting reagent Zns or O2

8. For the balanced equation below, what would be the limiting reagent if 54.6 grams of Na3PO4 were reacted with 19.4 grams of HCl?

3HCl + Na3PO4 --> H3NaPO2 + CLNa2O

Is the limiting reagent Na3PO4 or HCl

9. For the balanced equation below, what would be the limiting reagent if 9.99 grams of C2H3O2F were reacted with 9.06 grams of O2?

4C2H3O2F + 7O2 --> CO2 + 2HO2 + O4 + F2O

Is the limiting reagent C2H3O2F or O2

10. For the balanced equation below, what would be the limiting reagent if 53.4 grams of CH4S were reacted with 197 grams of O2?

2CH4S + 7O2 --> CO2 + OH +S7O2

Is the limiting reagent CH4S or O2