Nernst Equation


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Ricardo Ruiz Flores 1D
Posts: 29
Joined: Sat Jul 22, 2017 3:00 am

Nernst Equation

Postby Ricardo Ruiz Flores 1D » Sun Feb 18, 2018 9:29 pm

What does the nr variable represent in the Nernst Equation?

Kyle Sheu 1C
Posts: 87
Joined: Fri Jun 23, 2017 11:39 am

Re: Nernst Equation

Postby Kyle Sheu 1C » Sun Feb 18, 2018 9:33 pm

nr is essentially the molar coefficient (in this case, the number of moles of e- transferred); nr is unitless

Reference: P. 429

Christy Zhao 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: Nernst Equation

Postby Christy Zhao 1H » Sun Feb 18, 2018 10:59 pm

If you were confused with the subscript, page 571 says, "The subscript r is always the signal that we are using this 'molar' form."

aaron tang 2K
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: Nernst Equation

Postby aaron tang 2K » Thu Feb 22, 2018 2:45 am

nr is the molar coefficient of the Nernst Equation. It is basically the number of moles of electrons transferred.

Rishi Khettry 1L
Posts: 29
Joined: Fri Sep 29, 2017 7:05 am

Re: Nernst Equation

Postby Rishi Khettry 1L » Fri Feb 23, 2018 10:58 am

Be sure to remember with nr that the unit "mol" isn't incorporated

Jimmy Zhang Dis 1K
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

Re: Nernst Equation

Postby Jimmy Zhang Dis 1K » Sun Feb 25, 2018 11:50 pm

It is the total amount of electrons transferred. This can be found by combining two half reactions for the redox reactions.

Kevin Ru 1D
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: Nernst Equation

Postby Kevin Ru 1D » Mon Feb 26, 2018 12:04 am

To find the moles of electrons transferred, you'll want to look at the two balanced half reactions and make sure that the electron change is same in both.


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