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Zinc hydroxide is a sparingly soluble compound (Ksp = 4.5 × 10^-17) that dissolves in strongly basicAqueous Chemistry Chemistry Question

Question

Zinc hydroxide is a sparingly soluble compound (Ksp = 4.5 × 10^-17) that dissolves in strongly basic solution due to the formation of the Zn(OH)4 2– complex ion (Kf = 5.0 × 10^14). What is the minimum concentration of sodium hydroxide needed in 1.0 L of a solution which could be added to 0.10 mol Zn(OH)2 to fully dissolve it?

A.

2.1 M

B.

2.3 M

✓ Correct
C.

4.2 M

D.

4.6 M

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