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Consider the given half-reactions that occur at the cathode and anode in an electrolysis reaction at T = 298 K. cathode: Al3+(aq, 0.19 M) + 3 e- 2 Al(s) anode: Au(s) Au3+(aq, 0.16 M) + 3 e- Standard reduction potentials can be found in the table of standard reduction potentials. What voltage must be applied to drive the net reaction if current is negligible? Ecell = V Calculate the ohmic potential of the cell if the cell has a resistance of 2.3 2 and a current of 270 mA. Eohmic = V Calculate the potential that needs to be applied to drive the reaction considering the calculated ohmic potential, an anodic overpotential of 0.14 V, and a cathodic overpotential of 0.65 V.

Consider the given half-reactions that occur at the cathode and anode in an electrolysis reaction at T = 298 K. cathode: Al3+(aq, 0.19 M) + 3 e- 2 Al(s) anode: Au(s) Au3+(aq, 0.16 M) + 3 e- Standard reduction potentials can be found in the table of standard reduction potentials. What voltage must be applied to drive the net reaction if current is negligible? Ecell = V Calculate the ohmic potential of the cell if the cell has a resistance of 2.3 2 and a current of 270 mA. Eohmic = V Calculate the potential that needs to be applied to drive the reaction considering the calculated ohmic potential, an anodic overpotential of 0.14 V, and a cathodic overpotential of 0.65 V.

Chemistry: Principles and Practice
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 18.101QE: At 298 K, the solubility product constant for PbC2O4 is 8.5 1010, and the standard reduction...
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Calculate the potential that needs to be applied to drive the reaction considering the calculated ohmic potential, an anodic overpotential of 0.14 V, and a cathodic overpotential of 0.65 V. Eapplied = V If concentration polarization occurs in the cell and [Al³+], becomes 0.006 M and [Au³+], becomes 0.81 M, what potential must be applied to drive the reaction? Assume the resistance, current, and overpotentials are the same as in the previous parts of this question. Eapplied = V
Transcribed Image Text:Calculate the potential that needs to be applied to drive the reaction considering the calculated ohmic potential, an anodic overpotential of 0.14 V, and a cathodic overpotential of 0.65 V. Eapplied = V If concentration polarization occurs in the cell and [Al³+], becomes 0.006 M and [Au³+], becomes 0.81 M, what potential must be applied to drive the reaction? Assume the resistance, current, and overpotentials are the same as in the previous parts of this question. Eapplied = V
Consider the given half-reactions that occur at the cathode and anode in an electrolysis reaction at T 298 K. cathode: Al3+(aq, 0.19 M) + 3 e Al(s) anode: Au(s) Au³*(aq, 0.16 M) + 3 e- Standard reduction potentials can be found in the table of standard reduction potentials. What voltage must be applied to drive the net reaction if current is negligible? Ecell = V Calculate the ohmic potential of the cell if the cell has a resistance of 2.3 2 and a current of 270 mA. Eohmic V Calculate the potential that needs to be applied to drive the reaction considering the calculated ohmic potential, an anodic overpotential of 0.14 V, and a cathodic overpotential of 0.65 V.
Transcribed Image Text:Consider the given half-reactions that occur at the cathode and anode in an electrolysis reaction at T 298 K. cathode: Al3+(aq, 0.19 M) + 3 e Al(s) anode: Au(s) Au³*(aq, 0.16 M) + 3 e- Standard reduction potentials can be found in the table of standard reduction potentials. What voltage must be applied to drive the net reaction if current is negligible? Ecell = V Calculate the ohmic potential of the cell if the cell has a resistance of 2.3 2 and a current of 270 mA. Eohmic V Calculate the potential that needs to be applied to drive the reaction considering the calculated ohmic potential, an anodic overpotential of 0.14 V, and a cathodic overpotential of 0.65 V.
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