6N.13 (a)


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Hannah Lee 2F
Posts: 117
Joined: Thu Jul 11, 2019 12:15 am

6N.13 (a)

Postby Hannah Lee 2F » Sun Mar 01, 2020 11:55 pm

Calculate the reaction quotient, Q, for the following cell reactions, given the measured values of the cell potential. Balance the chemical equations by using the smallest whole-number coefficients.
Image

E = E° - 0.05916 V/n x logQ
-n(E - E°) / 0.05916 V = logQ
-2(1.33 - 1.52) / 0.05916 = logQ

I keep on getting Q = 2.65 x 10^6 when I do this problem, though the solution manual reads 1 x 10^6. Is there anything I'm doing wrong?

Justin Sarquiz 2F
Posts: 106
Joined: Fri Aug 30, 2019 12:15 am

Re: 6N.13 (a)

Postby Justin Sarquiz 2F » Mon Mar 02, 2020 8:37 am

E= E* - RT/nF ln Q
E = E* - 0.0592/n log Q
0.1=0.1 - 0.0592/12 log Q
0= log Q
Q=1
I think you messed up in calculating your E*, and there should be 12 electrons transferred.


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