The Concentration of Mg²⁺ in Seawater Is 5

question 45

Short Answer

The concentration of Mg²⁺ in seawater is 5.0 × 10^-2 M.What hydroxide concentration is needed to remove 90% of the Mg²⁺ by precipitation? (For Mg(OH)₂, K_sp = 1.2 × 10^-11.)

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