Stoichiometry Worksheet 1
Name_______________________
1. Sodium hydroxide reacts with sulfuric acid to produce sodium sulfate and water. Write the balanced
equation for this reaction and identify the type of chemical reaction. ________________________
2. Write all of the mole ratios for the above reaction.
Make sure you label everything. (Ex: 2 mol CO: 2 mol C)
3. How many grams of sodium sulfate are produced from a reaction with 3.5 grams of sodium hydroxide and
excess sulfuric acid?
4. In the reaction above, how many liters of water are produced from 456 grams of sulfuric acid? Would this
calculation be appropriate? Why or why not?
5. How many molecules of water can be produced from the reaction of 12.37 grams of sulfuric acid?
6. How many molecules of water can be produced from the reaction 17.2 grams of sodium hydroxide?
7. Write the balanced chemical formula for the decomposition of iron (III) hydroxide into iron (III) oxide and
water:
a. Write all of the mole ratios for the above reaction.
Make sure you label everything. (Ex: 2 mol CO: 2 mol C)
b. How many moles of water will be produced using 12.4 moles of iron (III) hydroxide:
c. How many formula units of Iron (III) hydroxide are needed to make 0.0350 moles of water:
d. Calculate the number of grams of water produced when 2.19 grams of iron (III) oxide are produced.
8. Write the balance chemical equation for the reaction of chlorine gas with sodium bromide and identify the type
of reactions. ___________________________________
a. Write all of the mole ratios for the above reaction.
Make sure you label everything. (Ex: 2 mol CO: 2 mol C)
b. How many grams of Sodium Chloride can be produced using 9.63 grams of chlorine gas?
c. Find the grams of Sodium Bromide required to form 10.3 L of bromine gas.
9. Write the balanced chemical formula for the combination reaction between copper and sulfur to form copper
(I) sulfide and identify the type of reaction ________________________________________
a. Write all of the mole ratios for the above reaction.
Make sure you label everything. (Ex: 2 mol CO: 2 mol C)
b. How many grams of sulfur are needed to react with 42.6 grams of pure copper?
c. Calculate the grams of copper metal needed to make 278.3 grams of cupper (I) sulfide:
d. How many formula units of copper (I) sulfide are produced from 22.7 grams of copper metal and excess
sulfur?