The half-reaction occurring at the cathode during electrolysis of an aqueous copper(II) iodide solution is Group of answer choices I2 + 2e– → 2I–. Cu → Cu2+ + 2e–. Cu2+ + 2e– → Cu. 2I– → I2 + 2e–. 2e– + 2H2O → H2 + 2OH–.
The half-reaction occurring at the cathode during electrolysis of an aqueous copper(II) iodide solution is Group of answer choices I2 + 2e– → 2I–. Cu → Cu2+ + 2e–. Cu2+ + 2e– → Cu. 2I– → I2 + 2e–. 2e– + 2H2O → H2 + 2OH–.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.77QE: A solution contains the ions H+, Ag+, Pb2+, and Ba2+, each at a concentration of 1.0 M. (a) Which of...
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Question
The half-reaction occurring at the cathode during
Group of answer choices
I2 + 2e– → 2I–.
Cu → Cu2+ + 2e–.
Cu2+ + 2e– → Cu.
2I– → I2 + 2e–.
2e– + 2H2O → H2 + 2OH–.
Expert Solution
Step 1-Introduction
Electrochemical cell consists of two half cells. The half cell on which reduction occurs is known as cathode. The half cell on which the oxidation occurs is known as anode. These two half cells work together and constitute the electrochemical cell. But on which half cell reduction or oxidation will occur, it is decided on the basis of the electrode potential values.
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