Question

When equal volumes of the following solutions are mixed, precipitation of AgCl (K_sp = 1.8 x 10^-10)wilt occur only with

(a)10^-4 M Ag^- and 10^-4 M CI^-

(b) 10^-5 M Ag⁺ and 10^-5 M CI^-.

(c)10^-6 M Ag⁺ and 10^-6 M CI^-

(d)10^-10 M Ag⁺ and 10^-10 M CI^-

Answer 1

Correct option (a)10^-4 M Ag^- and 10^-4 M CI^-

Explanation:

AgCl is precipitated only when [Ag⁺][Cl^-] > K_sp

On mixing equal volumes of two solutions, concentration becomes halved.