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Q6: A copper electroplating process utilizes 15 A of current by chemically dissolving (corroding) a electroplating a copper cathode. If it is assumed that there are no side reactions, how long will it take to corrode 20g of copper from the anode? (Atomic mass of Cu: 64 g/mol) copper anode and

Q6: A copper electroplating process utilizes 15 A of current by chemically dissolving (corroding) a electroplating a copper cathode. If it is assumed that there are no side reactions, how long will it take to corrode 20g of copper from the anode? (Atomic mass of Cu: 64 g/mol) copper anode and

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please solve questions no 6, 7, 8

Q6: A copper electroplating process utilizes 15 A of current by chemically dissolving (corroding) a electroplating a copper cathode. If it is assumed that there are no side reactions, how long will it take to corrode 20g of copper from the anode? (Atomic mass of Cu: 64 g/mol) copper anode and Q7: Calculate the volume of H, gas at 25°C and 1.00 atm that will be collected at the cathode when an aqueous solution of Na,SO, is electrolyzed for 2.00 hours with a 10.0-amp current at 90% current efficiency. (Hint: use ideal gas law, PV=mRT) R = 0.08205 L.atm/mol.K Determine the oxidation number of the chromium in an unknown salt if electrolysis of a molten sample of this salt for 1.50 hours with a 10.0-amp current deposits 9.71 grams of chromium metal at the cathode. Q8:
Transcribed Image Text:Q6: A copper electroplating process utilizes 15 A of current by chemically dissolving (corroding) a electroplating a copper cathode. If it is assumed that there are no side reactions, how long will it take to corrode 20g of copper from the anode? (Atomic mass of Cu: 64 g/mol) copper anode and Q7: Calculate the volume of H, gas at 25°C and 1.00 atm that will be collected at the cathode when an aqueous solution of Na,SO, is electrolyzed for 2.00 hours with a 10.0-amp current at 90% current efficiency. (Hint: use ideal gas law, PV=mRT) R = 0.08205 L.atm/mol.K Determine the oxidation number of the chromium in an unknown salt if electrolysis of a molten sample of this salt for 1.50 hours with a 10.0-amp current deposits 9.71 grams of chromium metal at the cathode. Q8:
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