Chapter 15 – Acids and Bases
Chapter 15
Acids and Bases
1. The hydronium ion and the hydroxide ion, in that order, are:
2. Which of the following does not fit the definition of a Brønsted Acid?
Chapter 15 – Acids and Bases
3. Which of the following does not fit the definition of a Brønsted Base?
4.
In the reaction HSO4–(aq) + OH–(aq) SO42–(aq) + H2O(l), the conjugate acid-base pairs are
Chapter 15 – Acids and Bases
5. In the reaction: CH3COOH(aq) + NH2– (aq) CH3COO– (aq) + NH3(aq), the conjugate
acid-base pairs are:
6. In the reaction: 2H2O(l) H3O+(aq) + OH– (aq) the conjugate acid-base pairs are
7. Identify the conjugate base of HPO42–.
8.
Identify the conjugate base of HSO4–.
9. Identify the conjugate base of HCO3–.
Chapter 15 – Acids and Bases
10. Identify the conjugate acid of SO42–.
11. Identify the conjugate acid of HCO3–.
12. Identify the conjugate acid of CO32–.
Chapter 15 – Acids and Bases
13. Which of the following is not a conjugate acid-base pair?
14. Which of the following is not a conjugate acid-base pair?
15. Which one of these statements about strong acids is true?
Chapter 15 – Acids and Bases
16. What is the concentration of H+ in a 2.5 M HCl solution?
17. The OH– concentration in a 1.0 10–3 M Ba(OH)2 solution is
18. The OH– concentration in a 7.5 10–3 M Ca(OH)2 solution is
Chapter 15 – Acids and Bases
Topic: Acids and Bases
19. The OH– concentration in a 2.5 10–3 M Ba(OH)2 solution is
20. What is the H+ ion concentration in a 4.8 10–2 M KOH solution?
Chapter 15 – Acids and Bases
22. What is the OH– ion concentration in a 5.2 10–4 M HNO3 solution?
Chapter 15 – Acids and Bases
Chapter 15 – Acids and Bases
25. Consider the weak acid CH3COOH (acetic acid). If a 0.048 M CH3COOH solution is
5.2% ionized, determine the [H3O+] concentration at equilibrium.
Chapter 15 – Acids and Bases
26. A 0.10 M NH3 solution is 1.3% ionized. Calculate the H+ ion concentration.
27. Which of the following solutions is acidic?
Chapter 15 – Acids and Bases
28. Which of the following solutions is acidic?
29. Which of the following solutions is basic?
Chapter 15 – Acids and Bases
30. Which of the following solutions is basic?
31. Calculate the pH of a carbonated beverage in which the hydrogen ion concentration is 3.4
10–4 M.
Chapter 15 – Acids and Bases
32. Determine the pH of a KOH solution made by mixing 0.251 g KOH with enough water to
make 1.0 102 mL of solution.
33. Calculate the H+ ion concentration in lemon juice having a pH of 2.40.
Chapter 15 – Acids and Bases
34. Calculate the pH of a 3.5 10–3 M HNO3 solution.
35. What is the pH of 10.0 mL of 0.0020 M HCl?
Chapter 15 – Acids and Bases
36. Calculate the pH of a 0.14 M HNO2 solution that is 5.7% ionized.
37. Calculate the pH of a 0.10 M HCN solution that is 0.0070% ionized.
Chapter 15 – Acids and Bases
38. What is the pH of a 0.0055 M HA (weak acid) solution that is 8.2% ionized?
39. Calculate the pH of a 6.7 10–2 M NaOH solution.
Chapter 15 – Acids and Bases
40. Calculate the pH of 2.6 10–2 M KOH.
41. Calculate the pH of a 1.6 M KOH solution.
Chapter 15 – Acids and Bases
42. What is the pH of a 0.014 M Ca(OH)2 solution?
43. What is the pH of a 0.001 M Ca(OH)2 solution?