# A salt, #AB_3#, expresses an aqueous solubility of #0.0750*mol*L^-1# with respect to the given solubility? What is #K_"sp"# for this solute?

##### 1 Answer

Nov 22, 2016

#### Explanation:

We examine the following equilibrium:

Since the solid cannot express a concentration, we write the following expression to represent the

As is usual in these problems, we raise each concentration to the power of the stoichiometric coefficient in the solubility expression, and thus we have the product

But we are given that

And thus

Are you happy with this?