a) The selectivity coefficient for a Bromide ion-selective electrode is K Br,OH 0.15. What will the change in the electrode potential be for a 1.4 x 10 M Br¯ at pH 5.5 if the pH is raised to pH 11.0? b) A pH probe is calibrated against pH 4 and pH 7 buffers. For pH 4 buffer, E = 200 mV and for pH 7 buffer, E = 23 mV. If the potential for an unknown solution is 157 mV, calculate the pH of the solution. Shew yo wk

a) The selectivity coefficient for a Bromide ion-selective electrode is K Br,OH 0.15. What will the change in the electrode potential be for a 1.4 x 10 M Br¯ at pH 5.5 if the pH is raised to pH 11.0? b) A pH probe is calibrated against pH 4 and pH 7 buffers. For pH 4 buffer, E = 200 mV and for pH 7 buffer, E = 23 mV. If the potential for an unknown solution is 157 mV, calculate the pH of the solution. Shew yo wk

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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