The potential difference between a potassium ion and saturated calomel electrode immersed in 100.0 ml of 1.073 x 10 M KCI was 362 mV. When 594 mg of NH4CI was added to the KCI solution (no volume change), the potential difference was 386 mV. Calculate the selectivity coefficient kx*,NH, for K* over NH4. Assume that there is no loss of NHa due to acid-base equilibrium effects.

The potential difference between a potassium ion and saturated calomel electrode immersed in 100.0 ml of 1.073 x 10 M KCI was 362 mV. When 594 mg of NH4CI was added to the KCI solution (no volume change), the potential difference was 386 mV. Calculate the selectivity coefficient kx,NH, for K over NH4. Assume that there is no loss of NHa due to acid-base equilibrium effects.

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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