Mg(OH) 2 is a sparingly soluble salt with a solubility product, Ksp, of 5.61 x 10^-11. It

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Mg(OH) ₂ is a sparingly soluble salt with a solubility product, Ksp, of 5.61 x 10^-11. It is used to control the pH and provide nutrients in the biological (microbial) treatment of municipal wastewater streams. What is the ratio of solubility of Mg(OH) ₂ dissolved in pure H ₂O to Mg(OH) ₂ dissolved in a 0.170 M NaOH solution?