Problem: Given that the solubility of Cu3(PO4)2 is 1.7 x 10-8 mol/L what is its Ksp value?

FREE Expert Solution

We’re being asked to determine Ksp of Cu3(PO4)2


Recall that Ksp is an equilibrium constant related to slightly soluble ionic compounds


The dissociation of magnesium carbonate in solution is as follows:

Cu3(PO4)2(s)  Cu2+(aq) + PO43–(aq)


We can construct an ICE table for this dissociation

Remember that solids are ignored in the ICE table and Ksp expression.


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Problem Details

Given that the solubility of Cu3(PO4)2 is 1.7 x 10-8 mol/L what is its Ksp value?