Question

40 ml, 0.05 M HCl titrated with 20 ml, 0.1 M NH₄OH then closet pH of final solution is: [Given K_b (NH₄OH) = 10^-5]

(1) 3.2

(2) 4.2

(3) 5.2

(4) 6.2

Answer 1

Correct option is (3) 5.2