Only A please .A). A method for the analysis of a metal ion (M2+) in water from the duck pond at Tech suffers from theinterference from another metal (N+2). When the concentration of M²+ is 100 times greater than that of N²+,an analysis for M²+ has a relative error of +0.5%. What is the selectivity coefficient for this method?B). A group of researchers describe a fluorescence method for the analysis of Ag* in water. When analyzinga solution that contains 1.0 x10-9 M Ag* and 1.1 x10-7 M Ni²+, the fluorescence intensity was +4.9% greaterthan that obtained for a sample of 1.0 x10-⁹ M Agt. Calculate the selectivity coefficient for Ag* with respect toNi+2 for this analytical method?

Given: Analysis of metal ion M2+ in water Interfering ion= N+2 Concentration of M2+ = 100 times…

- A method for the analysis of a metal ion (M2+) in water from the duck pond at Tech suffers from the erference from another metal (N+2). When the concentration of M²+ is 100 times greater than that of N²+, 105% What in the coloctivity coefficient for this method?

- A method for the analysis of a metal ion (M2+) in water from the duck pond at Tech suffers from the erference from another metal (N+2). When the concentration of M²+ is 100 times greater than that of N²+, 105% What in the coloctivity coefficient for this method?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.

Question

100%

Only A please

.A). A method for the analysis of a metal ion (M2+) in water from the duck pond at Tech suffers from the
interference from another metal (N+2). When the concentration of M²+ is 100 times greater than that of N²+,
an analysis for M²+ has a relative error of +0.5%. What is the selectivity coefficient for this method?
B). A group of researchers describe a fluorescence method for the analysis of Ag* in water. When analyzing
a solution that contains 1.0 x10-9 M Ag* and 1.1 x10-7 M Ni²+, the fluorescence intensity was +4.9% greater
than that obtained for a sample of 1.0 x10-⁹ M Agt. Calculate the selectivity coefficient for Ag* with respect to
Ni+2 for this analytical method?

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