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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