Chemistry 192 Problem Set 6 Spring, 2018 Solutions

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13. Zinc ions form a coordination complex in aqueous ammonia Zn2+ (aq) + 4NH 3(aq) *) Zn(NH 3) 2+ 4(aq) having formation equilibrium constant K f = 4:1 108. Zinc sul de (ZnS) is only spar-ingly soluble in water with solubility product constant K sp = 2:0 10 25. Calculate the molar solubility of zinc sul de in a 0.10 M aqueous ammonia solution ...

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