What is the ph of a solution that is. 75 m in sodium acetate and. 50 m in acetic acid? (ka for acetic acid is 1.8*10^-5?

Question

Chemistry

Abe

18 December, 00:28

What is the ph of a solution that is. 75 m in sodium acetate and. 50 m in acetic acid? (ka for acetic acid is 1.8*10^-5?

+2

Answers (1)

Know the Answer?

French · Answer 1

4.921.

Explanation:

It is an acidic buffer solution;

∵ pH = pKa + log[salt]/[acid].

∴ pH = - log (1,8 x 10⁻⁵) + log[0.75/0.50] = 4.745 + 0.1761 = 4.921.