Question

The solubility-product constant for Zn(OH)2 is Ksp=3.00×10−16. The formation constant for the hydroxo complex, Zn(OH)42−, is...

The solubility-product constant for Zn(OH)2 is Ksp=3.00×10−16.

The formation constant for the hydroxo complex, Zn(OH)42−, is Kf=4.60×1017.

A solubility-product constant, Ksp, corresponds to a reaction with the following general format:

salt(s)⇌cation(aq)+anion(aq)

A formation constant, Kf, corresponds to a reaction with the following general format:

metal ion(aq)+Lewis base(aq)⇌complex ion(aq)

Part A

When Zn(OH)2(s) was added to 1.00 L of a basic solution, 1.20×10−2 mol of the solid dissolved. What is the concentration of OH− in the final solution?

Express your answer with the appropriate units.

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