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Within what pH range can Cu2+ be separated from Fe2+ if their concentration is both 0.1M...

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Chemistry

Within what pH range can Cu2+ be separated from Fe2+ if theirconcentration is both 0.1M and H2S concentration is 0.01M? Show allcalculations to support your answer. (KCuS = 1.2x10^-36; KFeS =4.9x10^-18; KH2S = 1.3x10^-20)

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