We’re being asked to determine the Ksp value given that the solubility of Co3(PO4)2 is 4.5 x 10-8 mo/L
Recall that Ksp is an equilibrium constant related to slightly soluble ionic compounds.
The dissociation of Co3(PO4)2 in solution is as follows:
Co3(PO4)2(s) ⇌ 3 Co2+(aq) + 2 PO43-(aq)
We can construct an ICE table for this dissociation.
Remember that solids are ignored in the ICE table and Ksp expression.
Given that the solubility of Co3(PO4)2 is 4.5 x 10-8 mo/L what is its Ksp value?