The solubility of ZnS(s) in water at a certain temperature is 1.7 * 10^-¹¹ mol/L. The value of the K_sp of ZnS is

Question

Quizplus · Accepted Answer

The solubility product (Ksp) of ZnS is calculated using the formula Ksp = [Zn2+][S2-]. Given the solubility is 1.7 x 10^-10 mol/L, both [Zn2+] and [S2-] are equal to this value because ZnS dissociates into one Zn2+ and one S2- ion. Therefore, Ksp = (1.7 x 10^-10)^2 = 2.89 x 10^-20, which is approximately 2.9 x 10^-20, matching choice A.

The Solubility of ZnS(s) in Water at a Certain Temperature