Additional Problem Sets Chapter 10 Additional Problem Sets

10. 48 When 50. 0g iron(III) oxide reacts with carbon monoxide 32 10.48 When 50.0g iron(III) oxide reacts with carbon monoxide 32.8 g iron is produced. What is the percent yield of the reaction? Fe2O3 + 3 CO → 2 Fe + 3 CO2

10. 49 A reaction of nitrogen and sufficient hydrogen produced 30 10.49 A reaction of nitrogen and sufficient hydrogen produced 30.0 g ammonia, which is a 65.0 % yield for the reaction. How many grams of nitrogen reacted? N2 + 3 H2 → 2 NH3

10.50 Consider the unbalanced equation for the decomposition of potassium chlorate. KClO3 → KCl + O2 a) When 46.0 g KClO3 is heated, 12.1 g O2 is formed. How many grams of KCl is also formed?

10.50 cont. b) What is the percent yield of KCl for the reaction?

10.51 Acetylene, C2H2, used in welders’ torches, burns according to the following equation: 2 C2H2 + 5 O2 → 4 CO2 + 2 H2O a) How many molecules of oxygen are needed to react with 22.0 g acetylene?

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O b) How many grams of carbon dioxide could be produced from the complete reaction of the acetylene in part a, 22.0 g?

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O c) If the reaction in part a produces 64.0 g CO2, what is the percent yield for the reaction?