What is the ph of a solution made by mixing equal volumes of 1 m sodium acetate and 0.1 m acetic acid? (the pk of acetic acid is 4.76.) ?

PH of a solution = ?

if equal volumes of 1 m sodium acetate and 0.1 m acetic acid are mixed

pk of acetic acid is 4.76

for finding pH of a solution,

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

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

K = H

pH = pK

now pH is equal to pK

value of pK is given which is 4.76

it means value of pH is also 4.76