Problem: At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0610 g/L. What is the Ksp of this salt at this temperature?

FREE Expert Solution

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


The dissociation of slightly soluble ionic compounds in solution is as follows:

MnNm(s)  n Mm+(aq) + m Nn–(aq)


Remember that solids are ignored in the  Ksp expression.


Reaction: 

Sr3(AsO4)2(s) → 3 Sr2+(aq) + 2 AsO43-(aq)


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Problem Details

At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0610 g/L. What is the Ksp of this salt at this temperature?

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