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65. Consider the following: Zn²+ 2e →>> → Zn (s) (29) (aq) + (29) Fe2+ + 2€¯ → Fe(s) Ni²+ +2e → Ni (s) (29) pi²+ +2€¯ → Pt(s) +2€¯ → Co (s) (29) E = -0.28 V Which of the following half-cells, when combined with a standard hydrogen reference half-cell under standard conditions, will produce an electric cell with the greatest voltage? d. platinum-platinum ions e. cobalt-cobalt ions E = -0.76 V E = -0.44 V E = -0.24 V = +1.20 V a. zinc-zinc ions b. iron-iron ions c. nickel-nickel ions E

65. Consider the following: Zn²+ 2e →>> → Zn (s) (29) (aq) + (29) Fe2+ + 2€¯ → Fe(s) Ni²+ +2e → Ni (s) (29) pi²+ +2€¯ → Pt(s) +2€¯ → Co (s) (29) E = -0.28 V Which of the following half-cells, when combined with a standard hydrogen reference half-cell under standard conditions, will produce an electric cell with the greatest voltage? d. platinum-platinum ions e. cobalt-cobalt ions E = -0.76 V E = -0.44 V E = -0.24 V = +1.20 V a. zinc-zinc ions b. iron-iron ions c. nickel-nickel ions E

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
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65. Consider the following: Zzz²2+ + 2€¯ → Zn (s) 2° = -0.76 V + 2€¯ → Fe(s) E = -0.44 V +2e¯ → Ni (s) E = -0.24 V p²+ +2e → Pt(s) E = +1.20 V Co²+ +2€¯ → Co (s) E = -0.28 V (29) Which of the following half-cells, when combined with a standard hydrogen reference half-cell under standard conditions, will produce an electric cell with the greatest voltage? d. platinum-platinum ions e. cobalt-cobalt ions Fe²+ M²+ (29) (29) (29) (29) a. zinc-zinc ions b. iron-iron ions C. nickel-nickel ions
Transcribed Image Text:65. Consider the following: Zzz²2+ + 2€¯ → Zn (s) 2° = -0.76 V + 2€¯ → Fe(s) E = -0.44 V +2e¯ → Ni (s) E = -0.24 V p²+ +2e → Pt(s) E = +1.20 V Co²+ +2€¯ → Co (s) E = -0.28 V (29) Which of the following half-cells, when combined with a standard hydrogen reference half-cell under standard conditions, will produce an electric cell with the greatest voltage? d. platinum-platinum ions e. cobalt-cobalt ions Fe²+ M²+ (29) (29) (29) (29) a. zinc-zinc ions b. iron-iron ions C. nickel-nickel ions
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