The equilibrium constant, K. for a redox reaction is related to the standard cell potential, E by the equation cell nFE In K cel RT where n is the number of moles of electrons transferred, F (the Faraday's constant) is equal to 98 500 C mol. R (the gas constant) is equal to 8.314 JKmol and Tis the Kelvin temperature.
The equilibrium constant, K. for a redox reaction is related to the standard cell potential, E by the equation cell nFE In K cel RT where n is the number of moles of electrons transferred, F (the Faraday's constant) is equal to 98 500 C mol. R (the gas constant) is equal to 8.314 JKmol and Tis the Kelvin temperature.
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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Transcribed Image Text:The equilibrium constant, K, for a redox reaction is related to the standard cell
potential, E. by the equation
Standard reduction potentials
In K =
nFE
Reduction half-reaction
E (V)
RT
Ag+(ag) +eAg(s)
0.80
where n is the number of moles of electrons transferred, F (the Faraday's constant)
is equal to 98 500 C mol-1, R(the gas constant) is equal to 8.314 JK-' mol1.
and T is the Kelvin temperature.
Cu2+ (ag) + 20
Cu(s)
0.34
Sn+(ag) + 4e-Sn(s)
0.15
2H+(ag) + 20H2(9)
Ni+ (ag) + 2e-»Ni(s)
Fe+ (ag) + 20Fe(s)
Zn2+ (ag) + 2e→Zn(s)
-0.26
-0.45
-0.76
A1+ (ag) + 30-Al(s)
-1.68
Mg+ (ag) + 20MB(s)
2.37
• Part A
Use the table of standard reduction potentials given above to calculate the equilibrium constant at standard temperature (25 °C) for the following reaction:
Fe(s) + N+ (ag) »Fe2+ (ag) + Ni(s)
Express your answer numerically.
> View Available Hint(s)
?
K =

Transcribed Image Text:Part B
Calculate the standard cell potential (E
cel for the reaction
X(s) +Y*(ag) X+(ag) + Y(s)
if 6.51 x 10 .
Express your answer to three significant figures and include the appropriate units.
• View Available Hint(s)
HA
?
Value
Units
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