Chapter 9 Review

5. a. ) 5. 0 mol H2 b. ) 2. 5 mol O2 6. a. ) 15. 8 mol O2 b. ) 9 5. a.) 5.0 mol H2 b.) 2.5 mol O2 6. a.) 15.8 mol O2 b.) 9.00 mol CO2 / 13.5 mol H2O 7. a.) 575 g Na, 886 g Cl2 8. a.) 75.1 mol CO b.) 50.1 mol Fe / 75.1 mol CO2

9. 8.739 x 104 g CO 1.261 x 104 g H2 10. 1.10 x 103 g NO2 720. g NO 11. a.) 42.04 mol NoOH b.) 21.02 mol Na2CO3 21.02 mol H2O 12. a.) 463 g NaBr b.) 845 g AgBr

14. a. ) H2SO4 + NaOH Na2SO4 + H2O b. ) 37 g H2SO4 c 14. a.) H2SO4 + NaOH Na2SO4 + H2O b.) 37 g H2SO4 c.) 53 g Na2SO4 / 14 g H2O

Question 18 The limiting reactant is the reactant that controls the amount of product formed in a chemical reaction. It is the reactant used up first. The excess reactant is the substance that is not used up completely in a reaction.

Question 19 The theoretical yield is the maximum amount of product that can be produced from a given amount of reactant. The actual yield is the measured amount obtained. Actual yield is usually less than the theoretical yield.

Question 20 The percentage yield is the ratio of the actual yield to the theoretical yield multiplied by 100.

Question 21 Reactions often do not got to completion; Impure reactants produce less product than expected; Competing side reactions may consume some of the reactants; Some of the reactants, and some of the product, may be lost when it is purified.