Chemistry I
Chapter 9

2 Na + Cl2 ---> 2 NaCl
2 moles + 1 mole ---> 2 moles

Steps for solving problems:

Practice Problems

1. Calculate the number of moles of sulfuric acid that must react completely with sodium hydroxide to produce 1.55 mol of sodium sulfate. (Answer: 1.55 mol)

2. A sample of 0.14 moles of solid potassium chlorate is heated. How many grams of oxygen are produced? (Answer: 3.36 g)

3. Calculate the mass of sodium metal that will react with 105.0 grams of chlorine to form sodium chloride. (Answer: 136.25 g)

4. Determine the mass of carbon dioxide after the complete combustion of C3H9 and forms 3.5 grams of water. (Answer: 5.7 g)

More Practice Problems

A) How many moles of sodium nitrate will be formed from the reaction of 3.4 grams of barium nitrate and 2.5 grams of sodium sulfate? (Answer: 0.026 mol)

B) When 0.2 moles of aluminum chloride reacts with 0.7 moles silver nitrate, how many grams of silver chloride will be formed? (Answer: 85.99 g)

C) When 10.1 grams of ethyl alcohol, C2H5OH, undergoes a complete combustion with 36.1 grams oxygen gas, how many moles of carbon dioxide will be formed? How many grams of water will be formed? (Answer: 0.44 mol; 11.85 g)