Chemistry

What is the concentration of CrO22
4 in 0.0040 M Ba(NO3)2 saturated with BaCrO4. Including the activity coefficients in the expression?
The ksp of BaCrO4 is 1.17 x10^-10

[CrO4 2-]= ? M

I want to understand the problem not just the answer please.

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asked by Nadia

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