Chapter 16 Acid-Base Equilibria and Solubility Equilibria

Chapter 16 Acid-Base Equilibria and Solubility Equilibria

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

Multiple Choice Questions

1. In which one of the following solutions will acetic acid have the greatest percent ionization?
   A.0.1 M CH₃COOH
   B. 0.1 M CH₃COOH dissolved in 1.0 M HCl
   C. 0.1 M CH₃COOH plus 0.1 M CH₃COONa
   D. 0.1 M CH₃COOH plus 0.2 M CH₃COONa

Bloom’s Level: 5. Evaluate
Difficulty: Medium
Gradable: automatic
Section: 16.02
Subtopic: Weak Acid Equilibrium (K_a)
Topic: Acids and Bases

2. Which one of the following is a buffer solution?
   A.0.40 M HCN and 0.10 KCN
   B. 0.20 M CH₃COOH
   C. 1.0 M HNO₃ and 1.0 M NaNO₃
   D. 0.10 M KCN
   E. 0.50 M HCl and 0.10 NaCl

Bloom’s Level: 5. Evaluate
Difficulty: Medium
Gradable: automatic
Section: 16.03
Subtopic: Buffer Solutions (Common Ion Effect and the Henderson-Hasselbalch Equation)
Topic: Acids and Bases

3. Which one of the following combinations cannot function as a buffer solution?
   A.HCN and KCN
   B. NH₃ and (NH₄)₂SO₄
   C. HNO₃ and NaNO₃
   D. HF and NaF
   E. HNO₂ and NaNO₂

Bloom’s Level: 5. Evaluate
Difficulty: Medium
Gradable: automatic
Section: 16.03
Subtopic: Buffer Solutions (Common Ion Effect and the Henderson-Hasselbalch Equation)
Topic: Acids and Bases

4. Which of the following is the most acidic solution?
   A.0.10 M CH₃COOH and 0.10 M CH₃COONa
   B. 0.10 M CH₃COOH
   C. 0.10 M HNO₂
   D. 0.10 M HNO₂ and 0.10 M NaNO₂
   E. 0.10 M CH₃COONa

Bloom’s Level: 5. Evaluate
Difficulty: Medium
Gradable: automatic
Section: 16.02
Subtopic: Buffer Solutions (Common Ion Effect and the Henderson-Hasselbalch Equation)
Subtopic: Weak Acid Equilibrium (K_a)
Topic: Acids and Bases

5. Which of the following yields a buffer solution when equal volumes of the two solutions are mixed?
   A.0.10 M NH₃ and 0.10 M HCl
   B. 0.10 M NH₄⁺ and 0.10 M KOH
   C. 0.20 M NH₃ 0.10 M KOH
   D. 0.20 M NH₃ and 0.10 M HCl
   E. 0.20 M NH₄⁺ and 0.10M HCl

Bloom’s Level: 5. Evaluate
Difficulty: Medium
Gradable: automatic
Section: 16.03
Subtopic: Buffer Solutions (Common Ion Effect and the Henderson-Hasselbalch Equation)
Topic: Acids and Bases