Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment): Pt Cr 1.0 M MnO4 1.0 M Cr3+ 1.0 M Mn2+ 1.0 M Cr20,2- 1.0 M H* 1.0 M H* The standard reduction potentials are as follows: MnO,- + 8H+ + 5e- Cr,0-2- + 14H+ + 6e- → 2Cr3+ + 7H,0, E° = 1.33 V Mn2+ + 4H,0, E° = 1.51 V When current is allowed to flow, which species is reduced? Select one: O a. MnO4 O b. Cr3+ О с. H* O d. Cr20,2- е. Mn2+

Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment): Pt Cr 1.0 M MnO4 1.0 M Cr3+ 1.0 M Mn2+ 1.0 M Cr20,2- 1.0 M H* 1.0 M H* The standard reduction potentials are as follows: MnO,- + 8H+ + 5e- Cr,0-2- + 14H+ + 6e- → 2Cr3+ + 7H,0, E° = 1.33 V Mn2+ + 4H,0, E° = 1.51 V When current is allowed to flow, which species is reduced? Select one: O a. MnO4 O b. Cr3+ О с. H* O d. Cr20,2- е. Mn2+

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 137CWP: Consider a galvanic cell based on the following half-reactions: a. What is the standard potential...

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