Please help me with both I have one more attempt!! A solution contains 1.02×10-2 M potassium carbonate and 6.65×10-3 M p

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answerhappygod
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Please help me with both I have one more attempt!! A solution contains 1.02×10-2 M potassium carbonate and 6.65×10-3 M p

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Please help me with both I have one more attempt!!
A solutioncontains 1.02×10-2 M potassiumcarbonate and 6.65×10-3 M potassiumsulfide.Solid manganese(II) nitrate is addedslowly to this mixture.What is the concentration of sulfide ionwhen carbonate ion begins toprecipitate?[sulfide] = M
A solutioncontains 7.46×10-3 M bariumacetate and 1.21×10-2 M silvernitrate.Solid ammonium chromate is added slowlyto this mixture.What is the concentration of barium ionwhen silver ion begins toprecipitate?[Ba2+] = M
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