Name: _______________________________________ Date:__________________________________
Stoichiometry Worksheet Moles-Moles
Directions: For full credit you must show your work (put units on ALL numbers, including your
answer). Write your answer in the blank provided.
For problems 1-3 use the following equation and give the answer in moles.
2 NaClO3  2 NaCl + 3 O2
1. In order to produce 3 moles of oxygen gas, how much sodium chlorate is required?
Ans: __________________
2. How much sodium chloride will be produced if 4 moles of sodium chlorate decomposes
completely.
Ans: __________________
3. How much oxygen gas will be produced if 0.50 moles of sodium chloride was produced?
Ans: __________________
For problems 4-6 use the following equation and give the answer in moles. Remember to
balance it first.
____Fe + ___ HCl  ____ FeCl3 + ___H2
4. How much Fe is required to generate 6 moles of H2 gas?
Ans: __________________
5. If 7.0 moles of HCl is added to enough iron that the HCl is completely used up, how much
hydrogen gas will be produced?
Ans: __________________
6. How much HCl is required to completely react with 2.8 moles of Iron?
Ans: __________________
1.
2.
2 mol
4 mol
3.
4.
0.75 mol
4 mol
5.
6.
3.5 mol
8.4 mol
Name: _______________________________________ Date:__________________________________
Stoichiometry Worksheet Moles-Moles
Directions: For full credit you must show your work (put units on ALL numbers, including
your answer). Write your answer in the blank provided.
For problems 1-3 use the following equation and give the answer in moles.
Li2CO3  Li2O + CO2
7. In order to produce 2 moles of carbon dioxide gas, how much lithium carbonate
is required?
Ans: __________________
8. How much lithium oxide will be produced if 3 moles of lithium carbonate
decomposes completely.
Ans: __________________
9. How much carbon dioxide gas will be produced if 0.4 moles of lithium oxide was
produced?
Ans: __________________
For problems 4-6 use the following equation and give the answer in moles. Remember to
balance it first.
____ Ca(OH)2 + ____ HCl  ____ CaCl2 + ____ H2O
10. How much Ca(OH)2 is required to generate 5 moles of H2O?
Ans: __________________
11. If 6 moles of HCl is added to enough Ca(OH)2 that the HCl is completely used up,
how much H2O will be produced?
Ans: __________________
12. How much HCl is required to completely react with 7.8 moles of Ca(OH)2?
Ans: __________________