## Midterm 2015 Q6

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

Jingyuan_Fu_3E
Posts: 8
Joined: Wed Sep 21, 2016 2:59 pm

### Midterm 2015 Q6

For this question I understand how K is calculated using the formila -RTlnK. However, when I tried to apply another formula E=E nod-0.05916V/n logQ, and tried to assume E=0 since at this time Q=K at equilibrium, I found that the answer that I calculated is not the same as the answer given. Could someone show me what I did wrong or is there any alternative way besides the way provided in the coursereader?

Chem_Mod
Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

### Re: Midterm 2015 Q6

You should get the same answer, try to use ln instead of log, there is some rounding issues in the constant you have in your calculation.

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

### Who is online

Users browsing this forum: No registered users and 1 guest