An electrochemical cell is set up with the following configuration: Hg|Hg2+||Mn2+|Mn. The solutions are, respectively, 0.1 M Hg(NO3)2 (aq) and 0.1 M Mn(NO3)2 (aq). A voltmeter connected between the two electrodes reads -2.16 V. b. The standard reduction potential for Mn2+ + 2e- ® Mn is E° = -1.18 V. Using this value as a reference, what is the standard reduction potential for Hg2+ ® Hg according to this experiment? c. Which metal and metal ion from this system will react spontaneously when combined?
An electrochemical cell is set up with the following configuration: Hg|Hg2+||Mn2+|Mn. The solutions are, respectively, 0.1 M Hg(NO3)2 (aq) and 0.1 M Mn(NO3)2 (aq). A voltmeter connected between the two electrodes reads -2.16 V. b. The standard reduction potential for Mn2+ + 2e- ® Mn is E° = -1.18 V. Using this value as a reference, what is the standard reduction potential for Hg2+ ® Hg according to this experiment? c. Which metal and metal ion from this system will react spontaneously when combined?
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
Problem 84GQ
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b. The standard reduction potential for Mn2+ + 2e- ® Mn is E° = -1.18 V. Using this value as a reference, what is the standard reduction potential for Hg2+ ® Hg according to this experiment?
c. Which metal and metal ion from this system will react spontaneously when combined?
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