2. Copper is to be deposited from a solution that is 0.250 M in Cu(II) and is buffered to a pH of 4.00. Oxygen is evolved from the anode at a partial pressure of 730 torr. The cell has a resistance of 3.60 V, and the temperature is 25°C. Calculate: (a) the theoretical potential needed to initiate deposition of copper from this solution. (b) the IR drop associated with a current of 0.15 A in this cell. (c) the initial potential, given that the overvoltage of oxygen is 0.50 V under these conditions. (d) the potential of the cell when [Cu²"] is 7.00 x 10-6, assuming that IR drop and O₂ overvoltage remain unchanged.
2. Copper is to be deposited from a solution that is 0.250 M in Cu(II) and is buffered to a pH of 4.00. Oxygen is evolved from the anode at a partial pressure of 730 torr. The cell has a resistance of 3.60 V, and the temperature is 25°C. Calculate: (a) the theoretical potential needed to initiate deposition of copper from this solution. (b) the IR drop associated with a current of 0.15 A in this cell. (c) the initial potential, given that the overvoltage of oxygen is 0.50 V under these conditions. (d) the potential of the cell when [Cu²"] is 7.00 x 10-6, assuming that IR drop and O₂ overvoltage remain unchanged.
Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry
Section: Chapter Questions
Problem 22.17QAP
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![2. Copper is to be deposited from a solution that is 0.250
M in Cu(II) and is buffered to a pH of 4.00. Oxygen is
evolved from the anode at a partial pressure of 730 torr.
The cell has a resistance of 3.60 V, and the temperature is
25°C.
Calculate:
(a) the theoretical potential needed to initiate
deposition of copper from this solution.
(b) the IR drop associated with a current of 0.15 A
in this cell.
(c) the initial potential, given that the overvoltage
of oxygen is 0.50 V under these conditions.
(d) the potential of the cell when [Cu²+] is 7.00 x
10-6, assuming that IR drop and O₂ overvoltage
remain unchanged.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5657afed-b594-4824-8758-21f675322caa%2F19219475-0dc8-4251-bed7-11933044fa06%2Fmc4i0af_processed.png&w=3840&q=75)
Transcribed Image Text:2. Copper is to be deposited from a solution that is 0.250
M in Cu(II) and is buffered to a pH of 4.00. Oxygen is
evolved from the anode at a partial pressure of 730 torr.
The cell has a resistance of 3.60 V, and the temperature is
25°C.
Calculate:
(a) the theoretical potential needed to initiate
deposition of copper from this solution.
(b) the IR drop associated with a current of 0.15 A
in this cell.
(c) the initial potential, given that the overvoltage
of oxygen is 0.50 V under these conditions.
(d) the potential of the cell when [Cu²+] is 7.00 x
10-6, assuming that IR drop and O₂ overvoltage
remain unchanged.
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