A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 48.2 mL of 0.0600 M EDTA. Titration of the excess unreacted EDTA required 16.6 mL of 0.0270 M Ca2+. The Cd²+ was displaced from EDTA by the addition of an excess of CN. Titration of the newly freed EDTA required 25.6 mL of 0.0270 M Ca2+. What are the concentrations of Cd2+ and Mn2+ in the original solution?

A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 48.2 mL of 0.0600 M EDTA. Titration of the excess unreacted EDTA required 16.6 mL of 0.0270 M Ca2+. The Cd²+ was displaced from EDTA by the addition of an excess of CN. Titration of the newly freed EDTA required 25.6 mL of 0.0270 M Ca2+. What are the concentrations of Cd2+ and Mn2+ in the original solution?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.17QAP

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