Chemistry Practice Problems Electrolytes Practice Problems Solution: A solution contains one or more of the following i...

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Solution: A solution contains one or more of the following ions: Hg2 2 + , Ba2 + , and Fe2 + . When potassium chloride is added to the solution, a precipitate forms. The precipitate is filtered off and potassium sulfate is added to the remaining solution, producing no precipitate. When potassium carbonate is added to the remaining solution, a precipitate forms.Which ions were present in the original solution?

Problem

A solution contains one or more of the following ions: Hg2 2 + , Ba2 + , and Fe2 + . When potassium chloride is added to the solution, a precipitate forms. The precipitate is filtered off and potassium sulfate is added to the remaining solution, producing no precipitate. When potassium carbonate is added to the remaining solution, a precipitate forms.

Which ions were present in the original solution?