Question

What is the pH of a solution made by mixing equal volumes of 1 M sodium acetate and 1 M acetic acid? (The pK of acetic acid is 4.76.)

a) 1
b) 3.76
c) 4.76
d) 5.76

Answer 1

The pH is 4.76 (option C)

Step-by-step explanation:

Explanation:

pH of a solution = TO BE DETERMNED

[sodium acetate] = 1M ; [acetic acid] = 1M

Answer 2

The pH is 4.76 (option C)

Step-by-step explanation:

pH of a solution = TO BE DETERMNED

[sodium acetate] = 1M ; [acetic acid] = 1M

K = [H+] [A-] / [HA]

K = [H+] [1] / [1]

K = H

pH = pK

⇒ now pH is equal to pK

⇒ The value of pK is given which is 4.76

⇒ This means the value of the pH is also 4.76