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Consider the following reduction half-reactions: MnO4 (aq) + 8 H*(aq) + 5 e¯ = Mn²+ (aq) + 4H₂O(1) E° = +1.51 V Al³+ (aq) + 3 e 2Al(s) E° = -1.68 V Cl2(g) + 2 e 2 Cl¯(aq) E° = +1.36 V Mg²+ (aq) + 2 e Mg(s) E° = -2.36 V Calculate the standard cell potential for the most spontaneous reaction that can be produced when two of the given half-reactions are combined to form an electrochemical cell. -0.85 V +3.87 V -4.04 V O +2.87 V

Consider the following reduction half-reactions: MnO4 (aq) + 8 H*(aq) + 5 e¯ = Mn²+ (aq) + 4H₂O(1) E° = +1.51 V Al³+ (aq) + 3 e 2Al(s) E° = -1.68 V Cl2(g) + 2 e 2 Cl¯(aq) E° = +1.36 V Mg²+ (aq) + 2 e Mg(s) E° = -2.36 V Calculate the standard cell potential for the most spontaneous reaction that can be produced when two of the given half-reactions are combined to form an electrochemical cell. -0.85 V +3.87 V -4.04 V O +2.87 V

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.140QP
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Consider the following reduction half-reactions: MnO4 (aq) + 8 H*(aq) + 5 e¯ = Mn²+ (aq) + 4H₂O(1) E° = +1.51 V Al³+ (aq) + 3 e 2Al(s) E° = -1.68 V Cl2(g) + 2 e 2 Cl¯(aq) E° = +1.36 V Mg²+ (aq) + 2 e Mg(s) E° = -2.36 V Calculate the standard cell potential for the most spontaneous reaction that can be produced when two of the given half-reactions are combined to form an electrochemical cell. -0.85 V +3.87 V -4.04 V O +2.87 V
Transcribed Image Text:Consider the following reduction half-reactions: MnO4 (aq) + 8 H*(aq) + 5 e¯ = Mn²+ (aq) + 4H₂O(1) E° = +1.51 V Al³+ (aq) + 3 e 2Al(s) E° = -1.68 V Cl2(g) + 2 e 2 Cl¯(aq) E° = +1.36 V Mg²+ (aq) + 2 e Mg(s) E° = -2.36 V Calculate the standard cell potential for the most spontaneous reaction that can be produced when two of the given half-reactions are combined to form an electrochemical cell. -0.85 V +3.87 V -4.04 V O +2.87 V
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