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Fe3+ ions are to be separated from Hg2+ ions from an aqueous solution in which their...

Fe3+ ions are to be separated from Hg2+ ions from an aqueous solution in which their concentrations are both 0.05500 M . The criterion for "complete" separation is that the  Fe3+ ion concentration must be 10,000 times larger or 10,000 times smaller that the Hg2+ ion concentration. Answer the questions below.

At what pH will Fe(OH)3 precipitate from a 0.05500 M Fe3+ solution?

Ksp = 2.800×10-39

At what pH will Hg(OH)2 precipitate from a Hg M Hg2+ solution?

Ksp = 3.100×10-26

At what pH will Hg(OH)2 precipitate from a Hg M Hg2+ solution?

Ksp = 3.100×10-26

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Answer #1

a) FeCot)3 Fe 30 KspFeLo 2-800 x13 - Co os500) oHJ3 5. 0xlS 3l3 po-10o t -103C3 3) potA 1 2.Y3 pH 157 3.lo0 lo26 75l xlo po-1

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