Question 1
What is the pH of a solution made by mixing 30.00 mL of 0.10 mol L
-1 acetic acid (CH
3COOH) with 50.00 mL of 0.100 mol L
-1 KOH? Assume that the volumes of the solutions are additive.
Ka = 1.8 × 10
-5 for

◦ 12.40
◦ 11.13
◦ 9.26
◦ 8.26
Question 2
What is the pH at the equivalence point of a weak base-strong acid titration if 20.00 mL of NaOCl requires 28.30 mL of 0.50 mol L
-1 HCl for complete neutralization?
Ka = 3.0 × 10
-8 for HOCl.
◦ 4.03
◦ 3.76
◦ 3.18
◦ 0.30