The Concentration of Mg²⁺ in Seawater Is 0

question 138

Multiple Choice

The concentration of Mg²⁺ in seawater is 0.052 M. At what pH will 99% of the Mg²⁺ be precipitated as the hydroxide? (K_sp for Mg(OH) ₂ = 8.9  10^-12)

• A) 6.50
• B) 9.22
• C) 10.12
• D) 8.35
• E) 4.86

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