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Homework Help: chemistry

Posted by Monique on Saturday, November 12, 2011 at 11:06pm.

What is the concentration of the Mg2 ion in solution when [CO3-2] = 0.25M given that the
Ksp= 6.82 x 10-6 for the following reaction

MgCO3-------->Mg +. CO32-

Chemistry - DrBob222, Friday, November 11, 2011 at 5:34pm
Ksp = (Mg^2+)(CO3^2-)
Substitute 0.25M for CO3^2- and solve for Mg^2+

Am I using 6.82 x 10-6 to find Mg^2+.
dont think I understand

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