Consider the following electrochemical cell at 25 oC: www Zn Zn²+(1 M)||Cr³+ (0.1 M) Cr (a) what is the implied reaction of this element ? (b) what is the number of exchanged electrons, n? (c) calculate the electromotive force of the element Given: the standard reduction potential of the Cr Cr3+ electrode : Cr Cr³+ : E Cr/Cr³+ Moreover, the activity coefficients of Zn²+ and Cr³+ ions are equal to unity. = -0.74 V

Consider the following electrochemical cell at 25 oC: www Zn Zn²+(1 M)||Cr³+ (0.1 M) Cr (a) what is the implied reaction of this element ? (b) what is the number of exchanged electrons, n? (c) calculate the electromotive force of the element Given: the standard reduction potential of the Cr Cr3+ electrode : Cr Cr³+ : E Cr/Cr³+ Moreover, the activity coefficients of Zn²+ and Cr³+ ions are equal to unity. = -0.74 V

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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