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July 3, 2015

Homework Help: Chemistry

Posted by Gregory on Thursday, March 14, 2013 at 10:19pm.

A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 1.8 10-11 for Mg(OH)2 and Ksp = 5.1 10-26 for Sn(OH)2.
(a) What [Sn2+] is required to start the precipitation of Sn(OH)2?
(b) What [Sn2+] is required so that the [Mg2+] in solution will be 0.14 M?

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