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.
General Chemistry - Standalone book (MindTap Course List)
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Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.118QP
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4
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.
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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