Calculate the molar solubility of Cu(OH)2, Ksp = 2.2 × 10–20, in 0.32 M NH3, in mol/L. Don't forget to use the complexation reaction Cu2+ + 4 NH3 ? Cu(NH3)42+, K = 5.0 × 1013.

I thought I just had to find x, the extra information is throwing me off.

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