A Cu²+ ion-selective electrode was calibrated using metalion buffers with a constant ionic strength. The response of[Cu²+] (M)[Mg?+] (M)Response (mV)3.08 × 10-6-66.78the electrode to these buffer solutions is shown in the table.7.79 × 10-41.49Additionally, the response of the electrode to a solutioncontaining Cu2+ and Mg²+ is also shown in the table. From3.08 x 10-60.0169-34.86this information, calculate the selectivity coefficient forMg²+, KPOM24, for this Cu2+ ion-selective electrode.K PotCu2+,Mg²+

Write the expression for response of the electrode & concentation of the molecules. E = C log…

A Cu²+ ion-selective electrode was calibrated using metal ion buffers with a constant ionic strength. The response of [Cu²+] (M) [Mg?+] (M) Response (mV) 3.08 x 10-6 -66.78 the electrode to these buffer solutions is shown in the table. 7.79 x 10-4 1.49 Additionally, the response of the electrode to a solution containing Cu2+ and Mg?+ is also shown in the table. From 3.08 x 10-6 0.0169 -34.86 this information, calculate the selectivity coefficient for Mg²+, KPot M24, for this Cu2+ ion-selective electrode. K Pot Cu2+,Mg²+

A Cu²+ ion-selective electrode was calibrated using metal ion buffers with a constant ionic strength. The response of [Cu²+] (M) [Mg?+] (M) Response (mV) 3.08 x 10-6 -66.78 the electrode to these buffer solutions is shown in the table. 7.79 x 10-4 1.49 Additionally, the response of the electrode to a solution containing Cu2+ and Mg?+ is also shown in the table. From 3.08 x 10-6 0.0169 -34.86 this information, calculate the selectivity coefficient for Mg²+, KPot M24, for this Cu2+ ion-selective electrode. K Pot Cu2+,Mg²+

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

A Cu²+ ion-selective electrode was calibrated using metal
ion buffers with a constant ionic strength. The response of
[Cu²+] (M)
[Mg?+] (M)
Response (mV)
3.08 × 10-6
-66.78
the electrode to these buffer solutions is shown in the table.
7.79 × 10-4
1.49
Additionally, the response of the electrode to a solution
containing Cu2+ and Mg²+ is also shown in the table. From
3.08 x 10-6
0.0169
-34.86
this information, calculate the selectivity coefficient for
Mg²+, KPOM24, for this Cu2+ ion-selective electrode.
K Pot
Cu2+,Mg²+

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