Question

In a saturated solution of Zn(OH)2at 25^oC the value of [OH–] is 2.0 x 10^–6M. What is the value of the solubility-product constant, Ksp, for Zn(OH)2at 25^oC?

(A) 4.0 x 10–18
(B) 8.0 x 10–18
(C) 1.6 x 10–17
(D) 4.0 x 10–12
(E) 2.0 x 10–6

Answer 1

Answer:B

Explanation:

The solubility product is the product of the concentration of all the ions present as found in the rate equation. The solubility product is the equilibrium expression that shows the extent to which a substance dissolves in water. The full solution is shown in the image attached.

Answer 2

Answer:

4.0E^-18

which makes the answer A