## Final 2013 Question 4

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Vivian Tan 3F
Posts: 34
Joined: Fri Sep 25, 2015 3:00 am

### Final 2013 Question 4

For part A of question 4 on the 2013 final, can we also use Ecell = Ecello - 0.05916/n * logQ instead of Ecell = Ecello - RT/nF * lnQ ?

I get a slightly bigger answer when I use the Nernst equation with log in it than the one with ln.

Armo_Derbarsegian_3K
Posts: 35
Joined: Sat Jul 09, 2016 3:00 am

### Re: Final 2013 Question 4

Generally, you should use the log equation when also looking for pH. Otherwise, I think it is easier to use the natural log.

Athena Dong 2A
Posts: 11
Joined: Sat Jul 09, 2016 3:00 am

### Re: Final 2013 Question 4

Does it seem that we will be deducted for using one equation versus the other if pH is not a factor?

Return to “Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)”

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