Power Supply Cu* (aq) + 2 e Cu(s) - An external direct-current power supply is connected to two platinum electrodes immersed in a beaker containing 1.0 M CuSO4(ag) at 25'C, as shown in the diagram above. As the cell operates, copper metal is deposited onto one electrode and Ozg) is produced at the other electrode. The two reduction half-reactions for the overall reaction that occurs in the cell are shown in the table below. Half-Reaction E(V) Oz() + 4 H (aq) +4 e2 H2O) +1.23 Cu" (aq) + 2 e → Cus) +0.34 (a) On the diagram, indicate the direction of electron flow in the wire. (b) Write a balanced net ionic equation for the electrolysis reaction that occurs in the cell. (c) Predict the algebraic sign of AG' for the reaction. Justify your prediction.

Power Supply Cu* (aq) + 2 e Cu(s) - An external direct-current power supply is connected to two platinum electrodes immersed in a beaker containing 1.0 M CuSO4(ag) at 25'C, as shown in the diagram above. As the cell operates, copper metal is deposited onto one electrode and Ozg) is produced at the other electrode. The two reduction half-reactions for the overall reaction that occurs in the cell are shown in the table below. Half-Reaction E(V) Oz() + 4 H (aq) +4 e2 H2O) +1.23 Cu" (aq) + 2 e → Cus) +0.34 (a) On the diagram, indicate the direction of electron flow in the wire. (b) Write a balanced net ionic equation for the electrolysis reaction that occurs in the cell. (c) Predict the algebraic sign of AG' for the reaction. Justify your prediction.

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 135CWP: Consider a galvanic cell based on the following half-reactions: a. What is the expected cell...

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