The Solubility Product Constant of Mg(OH)₂ Is 9

question 48

Multiple Choice

The solubility product constant of Mg(OH) ₂ is 9.0 × 10^-12. If a solution is 0.010 M with respect to Mg²⁺ ion, the amount of [OH-] required to start the precipitation of Mg(OH) ₂ is:

• A) 1.5 × 10^-7
• B) 3.0 × 10^-5 M
• C) 3.0 × 10^-7 M
• D) 9.0 × 10^-10
• E) 1.5 × 10^-5 M

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