homework 14.35

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

Kelsey Jug 1J
Posts: 38
Joined: Wed Sep 21, 2016 2:59 pm

homework 14.35

Can anyone confirm that the solutions manual for 14.35 part b) is incorrect? The solutions wrote one of the half reactions as In^3+ (aq) + 2 e- ----> In^2+ (aq). The coefficient of the electron is obviously wrong as +3 - 2 does not equal +2. From my calculations considering n = 1, I obtained K = 1.07 x 10^2. Did anyone else obtain this?

Lauren_Johnston_3F
Posts: 12
Joined: Fri Jun 17, 2016 11:28 am

Re: homework 14.35

The solutions manual is incorrect. On the course website there is a link that says solution manual errors and 14.35 B is on there. And yes I got the same answer as you and it is the same as the one on the corrections link.

Chem_Mod
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Re: homework 14.35

Yes, it is a typo. They use the half reaction potential value for in the Appendix 2 for $In^{3+} +e^{-}\rightarrow In^{2+}$, -0.49V. Remember your significant figures.