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A saturated aqueous solution of calcium hydroxide has a pH of 12.25. What is the [Ca2+]...

A saturated aqueous solution of calcium hydroxide has a pH of 12.25. What is the [Ca2+] of such a solution?

A) 0.018

B) 5.6 × 10-13

C) 2.3 × 10-5

D) 0.035

E) 8.9 × 10-3

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