Calculate the standard cell potential at 25°C for the following cell reaction from standard free energies of formation: 2A1(s) + 3H&²+ (ag) → 2Al** (aq) + 3Hg(!)
Calculate the standard cell potential at 25°C for the following cell reaction from standard free energies of formation: 2A1(s) + 3H&²+ (ag) → 2Al** (aq) + 3Hg(!)
General Chemistry - Standalone book (MindTap Course List)
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ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.80QP: Calculate the standard cell potential of the cell corresponding to the oxidation of oxalic acid,...
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Question
![Calculate the standard cell potential at 25°C for the following cell reaction from standard free energies of formation:
2Al(s) + 3H3²+ (aq) → 2A1š+ (ag) + 3Hg(1)
Standard Free Energy of Formation
Ion
AG; (kJ/mol)
Als+ (aq)
-485.0
Zn2+ (aq)
-147.0
Co2+ (ag)
-54.4
Ni²+ (ag)
-45.6
Pb?+ (ag)
-24.39
Cu²+ (ag)
65.52
Hg²+ (aq)
164.4
Fe?+ (ag)
-78.87
Standard cell potential
V](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9517c93c-11bf-4546-94de-93e54ac3476e%2F2d631348-4276-4b86-8d5c-49a4eda8b6ae%2Fhz4ctam_processed.png&w=3840&q=75)
Transcribed Image Text:Calculate the standard cell potential at 25°C for the following cell reaction from standard free energies of formation:
2Al(s) + 3H3²+ (aq) → 2A1š+ (ag) + 3Hg(1)
Standard Free Energy of Formation
Ion
AG; (kJ/mol)
Als+ (aq)
-485.0
Zn2+ (aq)
-147.0
Co2+ (ag)
-54.4
Ni²+ (ag)
-45.6
Pb?+ (ag)
-24.39
Cu²+ (ag)
65.52
Hg²+ (aq)
164.4
Fe?+ (ag)
-78.87
Standard cell potential
V
![Calculate the standard cell potential of the cell corresponding to the oxidation of oxalic acid,
H2 C204, by chlorate ion,
ClO3 (ag).
3H2C204(aq) + ClO3 (ag) → 6CO2 (g) + Cl¯ (ag) + 3H2O(1)
AG; for
H2 C204 (aq) is -698 kJ.
You
may
need to use the following data.
Substance or ion AG; (kJ/mol)
ClO3 (ag)
-292.3
CO2 (g)
-394.4
Cl" (aq)
-131.3
H2O(1)
-237.1
Standard cell potential =
V](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9517c93c-11bf-4546-94de-93e54ac3476e%2F2d631348-4276-4b86-8d5c-49a4eda8b6ae%2Fyf7vv3o_processed.png&w=3840&q=75)
Transcribed Image Text:Calculate the standard cell potential of the cell corresponding to the oxidation of oxalic acid,
H2 C204, by chlorate ion,
ClO3 (ag).
3H2C204(aq) + ClO3 (ag) → 6CO2 (g) + Cl¯ (ag) + 3H2O(1)
AG; for
H2 C204 (aq) is -698 kJ.
You
may
need to use the following data.
Substance or ion AG; (kJ/mol)
ClO3 (ag)
-292.3
CO2 (g)
-394.4
Cl" (aq)
-131.3
H2O(1)
-237.1
Standard cell potential =
V
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