Cell Potential vs Standard Cell Potential

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Taylor_Yamane_2L
Posts: 23
Joined: Wed Sep 21, 2016 3:00 pm
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Cell Potential vs Standard Cell Potential

Postby Taylor_Yamane_2L » Fri Feb 10, 2017 12:41 am

Can someone explain the difference between standard cell potential (E knot) and cell potential (E)? Also if the problem simply asks for the cell potential are we solving for E?

Ariana de Souza 4C
Posts: 99
Joined: Wed Sep 21, 2016 2:56 pm

Re: Cell Potential vs Standard Cell Potential

Postby Ariana de Souza 4C » Fri Feb 10, 2017 7:35 pm

standard e potential (E^o) is when you are at standard conditions, so when you know that everything is at 1 molar.
when you're just asked for cell potential, it's probably not at standard conditions -- meaning you probably have to use the nernst equation, because it's a concentration cell.
hope that helps!

Logan 3C
Posts: 22
Joined: Wed Sep 21, 2016 2:57 pm

Re: Cell Potential vs Standard Cell Potential

Postby Logan 3C » Fri Feb 10, 2017 8:09 pm

To be at standard conditions the equation must also be at 25 degrees celsius. This affects how you solve for it.


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