University of Texas, Arlington

CHEM 1442

2. OH^- = 1.2 X 10^-6, pH = (8.08)

3. What is the pH of a 0.08 M HBr solution? (1.1)

4. What is the pH of a 0.05 M Ca(OH)₂ solution? (13)

5. What is the pH of a 0.5 M HOCl solution? Ka = 3.5 X 10^-8 (3.88)

6. What is the pH of a 0.3 M C₆H₅NH₂ solution? Kb = 4.2 X 10^-10 (9.05)

7. A 0.1 M HX solution is 3% ionized. What is the value of Ka? (9.28 X 10^-5)

8. A 0.10 M HX solution has a pH of 2. What is the Ka? (1.1 X 10^-3)

Salt Solutions

9. What is the pH of a 0.10 M NaF solution? Ka HF = 7.2 X 10^-4 (8.1)

10. What is the pH of a 0.10 M NH₄Cl solution? Kb NH₃ = 1.8 X 10^-5 (5.1)

11. Which salt solution would result in an acidic solution: KCl, CaF₂, or FeCl₃? (FeCl₃)

Will solutions of the following be acidic, basic, or neutral? (a) NaCl
1. 1. KNO₂ (c) CuNO₃ (d) AgNO₃

pur-new-sol

PFA