ACIDS AND BASES REVIEW SHEET



ACIDS AND BASES REVIEW SHEET

Identify each acid, base, conjugate acid, and conjugate base.

1. HNO2 + H2O ( H3O+ + NO2-

ACID BASE CA CB

2. HBrO4 + H2O ( H3O+ + BrO4-

ACID BASE CA CB

3. H2O + S2- ( HS- + OH-

ACID BASE CA CB

4. HSO4- + C2O42- ( SO42- + HC2O4-

ACID BASE CB CA

5. CN- + HC2H3O2 ( HCN + C2H3O2-

BASE ACID CA CB

Complete the equation for each of the following acid-base reactions.

6. HF + CH3COO - ( F- + CH3COOH

7. H2S + CO32- ( HS- + HCO3-

8. NH4+ + F- ( NH3 + HF

Classify each as a Bronsted-Lowry Lewis acid, base or both

9. H2O Both 12. H+ Acid

10. O2- Base 13. CHF3 Acid

11. S2- Base 14. Cl- Base

15. At 25 (C what is the hydroxide concentration of a solution that is 4.5 ( 10-3 M H+?

2.2 x 10-12

16. What is the [OH-] of a 0.25 M solution of HCl in water at 25 (C?

4.0 x 10-14

17. What is the pH of a solution in which [H+] = 1.1 ( 10-4 M?

pH = 3.96

18. What is the pH of a solution in which [OH-] = 8.23 ( 10-6 M?

pOH = 5.085 therefore pH = 8.915

19. What is the pOH of a solution in which [OH-] = 5.2 ( 10-2 M?

pOH = 1.28

20. A solution of NaOH in water has a pH of 10.3. What is the [H+]?

5.0 x 10-11

21. What is the pH of a 2.1 ( 10-3 M solution of HCl?

pH = 2.68

22. Calculate the [H+] or [OH-] for the solutions below.

a. Milk has a pH of 6.9. What is the [H+]? [H+] = 1.26 x 10-7

b. Oven cleaner has a pH of 13.4. What is the [OH-]?

pOH = 0.6 therefore [OH-] = 0.25M

c. A phosphate-containing detergent has a pOH of 4.7. What is the [OH-]?

[OH-] = 2.0 x 10-5

23. The expression for the dissociation of water is Kw = [H+][OH-]. Why does liquid water appear in this expression?

24. Write equations to show what happens when each of the acids/bases below reacts with water.

a. H2S

c. HNO2

d. CO3-2

e. As an acid HPO4-2

f. As a base HPO4-2

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