Question

Question 3. ( 3 points )

Calculate the pH of the following solutions.

a. 0.02 M acetic acid , K_a = 1.7 x 10^-5

b. 0.02 M ammonia , K_b = 1.8 x 10^-5

c. 0.2 M acetic acid and 0.1 M sodium acetate, pK_a for acetic acid = 4.77