The concentration of Cd^2+ in a saturated solution of Cd(OH)2 is 1.11 x 10^-5 mol/L at a certain temperature. Calculate the Ksp for the compound at this temperature.

Question

(report to hundredths place and in scientific notation)

Answer 1

Cd(OH)₂(s) <==> Cd²⁺(aq) + 2OH-(aq)

Ksp = [Cd²⁺][OH-]²

[Cd²⁺] = 1.11x10^-5 M

[OH-] = 2 x 1.11x10^-5 M = 2.22x10^-5 M

Plug in these values and solve for Ksp