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4. (10 points) An electrolytic cell is set up with a metal object to be electroplated by the electrolysis of a solution of NiSO4 (aq). The metal object is connected to one pole of a DC power supply. The other pole is connected to a bar of nickel metal in a solution of 1.25 M NISO4 (aq). a. Is the metal object the anode or the cathode? Write the reaction that takes place at the cathode of the cell.

4. (10 points) An electrolytic cell is set up with a metal object to be electroplated by the electrolysis of a solution of NiSO4 (aq). The metal object is connected to one pole of a DC power supply. The other pole is connected to a bar of nickel metal in a solution of 1.25 M NISO4 (aq). a. Is the metal object the anode or the cathode? Write the reaction that takes place at the cathode of the cell.

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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(10 points) An electrolytic cell is set up with a metal object to be electroplated by the electrolysis of a solution of NiSO4 (aq). The metal object is connected to one pole of a DC power supply. The other pole is connected to a bar of nickel metal in a solution of 1.25 M NISO4 (aq). a. Is the metal object the anode or the cathode? 4. b. Write the reaction that takes place at the cathode of the cell.
Transcribed Image Text:(10 points) An electrolytic cell is set up with a metal object to be electroplated by the electrolysis of a solution of NiSO4 (aq). The metal object is connected to one pole of a DC power supply. The other pole is connected to a bar of nickel metal in a solution of 1.25 M NISO4 (aq). a. Is the metal object the anode or the cathode? 4. b. Write the reaction that takes place at the cathode of the cell.
c. If the solution is electrolyzed at 100% efficiency for 2.25 hours at a constant current of 1.97 A, what mass of nickel metal is plated onto the object?
Transcribed Image Text:c. If the solution is electrolyzed at 100% efficiency for 2.25 hours at a constant current of 1.97 A, what mass of nickel metal is plated onto the object?
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