Define what were the molarities of cd2 and mn2

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Reference no: EM13255972

A 50.0 mL sample containing Ca+2 and Mn+2 was treated with 87.7 mL of 0.0400 M EDTA. Titration of the excess unreacted EDTA required 18.7 mL of 0.0300 M Ca2 . The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 25.5 mL of 0.0250 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?

Reference no: EM13255972

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