Question: Please help. A certain solution is 0.010 M in Zn2+ and Feat. If the hydrogen sulfide solution is saturated, that is (H2S) - 0.30 M,

Please help.

A certain solution is 0.010 M in Zn2+ and Feat. If the hydrogen sulfide solution is saturated, that is (H2S) - 0.30 M, for each pH determine which sulfides will precipitate. Kspa for FeS = 6 x 10*2, Kspa for Zn = 3 x 102 PH -0.5 1. Neither will precipitate. pH - 1.5 > 2. Only Fes will precipitate. pH - 2.5 3. Only ZnS will precipitate. 4. Both FeS and ZnS will precipitate, pH - 3.5 >

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