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The magnesium and calcium ions present in seawater ([Mg2+] = 0.059 M and [Ca2+] = 0.011 M) can be separated by selective precipitation with KOH. What is the concentration of [Mg2+] when Ca(OH)2 starts to precipitate? Ksp Mg(OH)2 = 2.1 x 10-13 and the Ksp Ca(OH)2 = 4.7 x 10-6 2.5 x 10-10 M
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The magnesium and calcium ions present in seawater ([Mg2+] = 0.059 M and [Ca2+] = 0.011 M) can be se...
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