A method for the analysis of Ca2+ in water suffers from an interference in the presence of Zn2+. When the concentration of Ca2+ is 100 times greater than that of Zn2+, an analysis for Ca2+ gives a relative error of +0.5%. What is the selectivity coefficient for this method?
A method for the analysis of Ca2+ in water suffers from an interference in the presence of Zn2+. When the concentration of Ca2+ is 100 times greater than that of Zn2+, an analysis for Ca2+ gives a relative error of +0.5%. What is the selectivity coefficient for this method?
Chapter17: Complexation And Precipitation Reactions And Titrations
Section: Chapter Questions
Problem 17.17QAP
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A method for the analysis of Ca2+ in water suffers from an interference in the presence of Zn2+. When the concentration of Ca2+ is 100 times greater than that of Zn2+, an analysis for Ca2+ gives a relative error of +0.5%. What is the selectivity coefficient for this method?
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