© 2014 Pearson Education, Inc. Basic Chemistry, 4/e Chapter 14: Acids and Bases Karen Timberlake

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 1. All of the following are strong acids except A. sulfuric acid. B. nitric acid. C. hydrochloric acid. D. acetic acid.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 1. All of the following are strong acids except A. sulfuric acid. B. nitric acid. C. hydrochloric acid. D. acetic acid.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 2. All of the following are strong bases except A. sodium hydroxide. B. calcium hydroxide. C. aluminum hydroxide. D. potassium hydroxide.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 2. All of the following are strong bases except A. sodium hydroxide. B. calcium hydroxide. C. aluminum hydroxide. D. potassium hydroxide.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 3. Which of the following juices is least acidic? A. Tomato B. Apple C. Orange D. Lemon

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 3. Which of the following juices is least acidic? A. Tomato B. Apple C. Orange D. Lemon

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 4. Which of the following metals does not react with an acid? A. Calcium B. Copper C. Magnesium D. Zinc

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 4. Which of the following metals does not react with an acid? A. Calcium B. Copper C. Magnesium D. Zinc

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 5. Determine the K a for an acid HX if the pH of a M solution of HX is 4.5. A. 1.0 × 10 –8 B. 3.0 × 10 –7 C. 2.5 × 10 –8 D. 4.5 × 10 –9

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 5. Determine the K a for an acid HX if the pH of a M solution of HX is 4.5. A. 1.0 × 10 –8 B. 3.0 × 10 –7 C. 2.5 × 10 –8 D. 4.5 × 10 –9

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 6. Determine the K a for an acid HX if the [H + ] of a M solution of HX is M. A. 3.0 × 10 –9 B. 4.5 × 10 –9 C. 3.0 × 10 –7 D. 2.5 × 10 –7

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 6. Determine the K a for an acid HX if the [H + ] of a M solution of HX is M. A. 3.0 × 10 –9 B. 4.5 × 10 –9 C. 3.0 × 10 –7 D. 2.5 × 10 –7

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 7. The [H + ] of a 1.0 M acetic acid (K a = 1.8 × 10 –5 ) solution is A. 1.0 M. B. 0.3 M. C M. D. 1.8 × 10 –5 M.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 7. The [H + ] of a 1.0 M acetic acid (K a = 1.8 × 10 –5 ) solution is A. 1.0 M. B. 0.3 M. C M. D. 1.8 × 10 –5 M.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 8. What is the pH of a M HCl solution? A B C D. 3.0

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 8. What is the pH of a M HCl solution? A B C D. 3.0

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 9. What is the pH of a 0.04 M KOH solution? A. 9.6 B C D. 12.6

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 9. What is the pH of a 0.04 M KOH solution? A. 9.6 B C D. 12.6

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 10. What is the [H + ] of a solution at pH 3.5? A. 5.3 × 10 –5 B. 6.0 × 10 –4 C × 10 –4 D × 10 –3

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 10. What is the [H + ] of a solution at pH 3.5? A. 5.3 × 10 –5 B. 6.0 × 10 –4 C × D × 10 –3

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 11. What is the [OH – ] concentration of a solution at pH 4.0? A. 4 M B. 10 –4 M C. 10 M D. 10 –10 M

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 11. What is the [OH – ] concentration of a solution at pH 4.0? A. 4 M B. 10 –4 M C. 10 M D. 10 –10 M

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 12. A student titrated 15.0 mL of an unknown acid solution with 25.0 mL of a M KOH solution. What is the molarity of the unknown acid? A M B M C M D M

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 12. A student titrated 15.0 mL of an unknown acid solution with 25.0 mL of a M KOH solution. What is the molarity of the unknown acid? A M B M C M D M

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 13. A student titrated 20.0 mL of an unknown acid solution with 32.4 mL of a M KOH solution. What is the molarity of the unknown acid? A M B M C M D M

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 13. A student titrated 20.0 mL of an unknown acid solution with 32.4 mL of a M KOH solution. What is the molarity of the unknown acid? A M B M C M D M

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 14. Which of the following statements best describes a buffer? A. An acid on the product side of an equation describing an acid–base reaction. B. A solution that contains substantial amounts of both a weak acid and its conjugate base and resists changes in pH. C. A base on the product side of an equation describing an acid–base reaction. D. Any substance that can act as an acid or base, depending on the nature of the solution.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 14. Which of the following statements best describes a buffer? A. An acid on the product side of an equation describing an acid–base reaction. B. A solution that contains substantial amounts of both a weak acid and its conjugate base and resists changes in pH. C. A base on the product side of an equation describing an acid–base reaction. D. Any substance that can act as an acid or base, depending on the nature of the solution.

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 15. Which of these buffers, according to your text, plays an important role in stabilizing the pH of the blood? A. CH 3 COOH/CH 3 COO – B. H 2 PO 4 – /HPO 4 2– C. H 2 SO 4 /HSO 4 – D. H 2 CO 3 /HCO 3 –

© 2014 Pearson Education, Inc. Chapter 14 – Acids and Bases 15. Which of these buffers, according to your text, plays an important role in stabilizing the pH of the blood? A. CH 3 COOH/CH 3 COO – B. H 2 PO 4 – /HPO 4 2– C. H 2 SO 4 /HSO 4 – D. H 2 CO 3 /HCO 3 –