Problem: A solution contains one or more of the following ions: Ag+, Ca2+, and Cu2+. When sodium chloride is added to the solution, no precipitate forms. When sodium sulfate is added to the solution, a white precipitate forms. The precipitate is filtered off and sodium carbonate is added to the remaining solution, producing a precipitate.Which ions were present in the original solution?

FREE Expert Solution

add sodium chloride: NaCl → Na+ + Cl-

Solubility rule: Halides (Cl, Br, and I) are soluble except when paired with Ag+, Pb2+, Cu+, Hg22+


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Problem Details

A solution contains one or more of the following ions: Ag+, Ca2+, and Cu2+. When sodium chloride is added to the solution, no precipitate forms. When sodium sulfate is added to the solution, a white precipitate forms. The precipitate is filtered off and sodium carbonate is added to the remaining solution, producing a precipitate.

Which ions were present in the original solution?

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