\( \mathrm{K}_{\mathrm{sp}} \) of \( \mathrm{Mg}(\mathrm{OH})_{2} \...

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\( \mathrm{K}_{\mathrm{sp}} \) of \( \mathrm{Mg}(\mathrm{OH})_{2} \) is \( 4.0 \times 10^{-6} \). At what minimum
P \( \mathrm{pH}, \mathrm{Mg}^{2+} \) ions starts precipitating \( 0.01 \mathrm{MgCl}_{2} \)

W
(1) \( 2+\log 2 \)
(2) \( 2-\log 2 \)
(3) \( 12+\log 2 \)
(4) \( 12-\log 2 \)
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