Ionic EquilibriumHard
Question
KSP if Mg(OH)2 is 1 × 10-12. 0.01M MgCI2 will show precipitation in a solution of pH greater than:
Options
A.3
B.9
C.12
D.8
Solution
[Mg2+] [OH-]2 = 1 × 10-12 ;
∴ [OH-] =
= 10-5
or pOH = 5.
and thus pH = 9.
∴ [OH-] =
= 10-5or pOH = 5.
and thus pH = 9.
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