7. An electrolytic cell was constructed from zinc and copper half-cells. The equation of the reaction is shown below. Zn (s) + Cư“ (aq) → Zn²* (aq) + Cu (s) The observed voltage was found to be 1.00 V instead of the standard cell potential, F of 1.10 V. Which of the following accounts for this observation? A. The solutions in the half-cells had different volumes. B. The copper electrode was larger than the zinc electrode. C. The Zn* solution was more concentrated than the Cu²* solution. D. The Zn2* electrolyte was ZnSO4, while the Cu²* electrolyte was Cu(NO:)2-
7. An electrolytic cell was constructed from zinc and copper half-cells. The equation of the reaction is shown below. Zn (s) + Cư“ (aq) → Zn²* (aq) + Cu (s) The observed voltage was found to be 1.00 V instead of the standard cell potential, F of 1.10 V. Which of the following accounts for this observation? A. The solutions in the half-cells had different volumes. B. The copper electrode was larger than the zinc electrode. C. The Zn* solution was more concentrated than the Cu²* solution. D. The Zn2* electrolyte was ZnSO4, while the Cu²* electrolyte was Cu(NO:)2-
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 94GQ: A voltaic cell is constructed in which one half-cell consists of a silver wire in an aqueous...
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Transcribed Image Text:7. An electrolytic cell was constructed from zinc and copper half-cells. The equation of the
reaction is shown below.
Zn (s) + Cu²* (aq) → Zn²* (aq) + Cu (s)
The observed voltage was found to be 1.00 V instead of the standard cell potential, F of 1.10
V.
Which of the following accounts for this observation?
A. The solutions in the half-cells had different volumes.
B. The copper electrode was larger than the zinc electrode.
C. The Zn solution was more concentrated than the Cu²* solution.
D. The Zn* electrolyte was ZnSO4, while the Cu2* electrolyte was Cu(NO3)2.
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