Homework Help: Chemistry

Posted by amy on Tuesday, April 17, 2007 at 4:27pm.

voltaic cells in non-standard conditions, how does concentration of solm's effect the value of Ecell. I understand that as concentration increases so does the E-cell value but why?

The half cell is
E = E^o - 0.0592 log Q where Q stands for K at equilibrium and K = (ox)/(red).
Therefore, as the concentration of the oxidized materials and/or the reduced materials changes, so does Q and that changes E^o from non-standard conditions. The 0.0592 constant is made up of other constants, 2.303 RT/F

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