Finding the Limiting Reagent Practice Problems

Directions: for the following questions, click on the reactant you believe is the limiting reagent!
Click here for reference to a periodic table!
Please have a calculator handy!

1. For the balanced equation shown below, what would be the limiting reagent if 54.4 grams of NaCl were reacted with 69.8 grams of H2SO4?
NaCl+H2SO4=>HCl+NaHSO4
NaCl                       H2SO4


2. For the balanced equation shown below, what would be the limiting reagent if 13.5 grams of Al were reacted with 35.0 grams of S?
2Al+3S=>Al2S3
Al                             S

3. For the balanced equation shown below, what would be the limiting reagent if 28.3 grams of C2H3Cl3 were reacted with 6.98 grams of O2?
C2H3Cl3+2O2=>2CO2+3HCl
C2H3Cl3                 O2

4. For the balanced equation shown below, what would be the limiting reagent if 49.0 grams of F2 were reacted with 14.0 grams of H2O?
2F2+2H2O=>4HF+O2
F2                            H2O

5. For the balanced equation shown below, what would be the limiting reagent if 37.5 grams of SiO2 were reacted with 10.7 grams of C?
SiO2+3C=>SiC+2CO
SiO2                        C

6. For the balanced equation shown below, what would be the limiting reagent if 54.9 grams of C2H7N were reacted with 216 grams of O2?4C2H7N+13O2=>8CO+14H2O+4NO
C2H7N                     O2                 

7. For the balanced equation shown below, what would be the limiting reagent if 31.0 grams of H2 were reacted with 96.5 grams of N2?
3H2+N2=>2NH3
H2                          N2

8. For the balanced equation shown below, what would be the limiting reagent if 98.2 grams of C4H10O were reacted with 154 grams of O2?
C4H10O+6O2=>4CO2+5H2O
C4H10O                O2

9. For the balanced equation shown below, what would be the limiting reagent if 83.3 grams of C2H3OF were reacted with 69.3 grams of O2?
4C2H3OF+5O2=>8CO+6H2O+2F2
C2H3OF               O2


10. For the balanced equation shown below, what would be the limiting reagent if 15.7 grams of Fe2O3 were reacted with 1.41 grams of C?
2Fe2O3+3C=>4Fe+3CO2
Fe2O3                   C


For more practice problems feel free to check out this website, http://science.widener.edu/svb/tutorial/limitreagentcsn7.html