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Copper(I) ions in aqueous solution react with NH3(aq) according to
Cu+(aq) + 2NH3(aq) -->Cu(NH3)2^+
Kf = 6.3x10^10
Calculate the solubility (in g·L–1) of CuBr(s) (Ksp = 6.3× 10–9) in 0.41 M NH3(aq).

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