## Nernst Equation usage

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

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JustinHorriat_4f
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Joined: Wed Sep 18, 2019 12:19 am

### Nernst Equation usage

I am still confused on when we would need to use the Nernst Equation? Like what kind of questions would be asked that would prompt us to use the equation?

SnehinRajkumar1L
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Joined: Thu Jul 11, 2019 12:15 am

### Re: Nernst Equation usage

The Nernst equation relates the energy of a cell outside of standard conditions when the concentrations of the products and reactants change to energy in standard conditions. So, when there is a change in concentration, use the Nernst equation.

Matt Sanruk 2H
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### Re: Nernst Equation usage

What is the Nernst equation exactly?

Long Luong 2H
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Joined: Thu Sep 19, 2019 12:16 am

### Re: Nernst Equation usage

Matt Sanruk 2H wrote:What is the Nernst equation exactly?

The Nernst equation calculates cell potential based on concentration. It is E$E = E^\bigcirc - \frac{RT}{nF}lnQ$.

J Medina 2I
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Joined: Wed Sep 25, 2019 12:17 am

### Re: Nernst Equation usage

The Nernst Equation relates cell potential to the concentration of what is being reduced and oxidized in their aqueous solutions.

Sanjana K - 2F
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### Re: Nernst Equation usage

You'd use it to relate the reduction potential (under non-standard conditions) to the standard electrode potential. At any point in the reaction, you can find the cell potential using this equation.

Matt Sanruk 2H
Posts: 131
Joined: Wed Sep 18, 2019 12:21 am

### Re: Nernst Equation usage

Oh this is the one similar to the delta g equation comparing the delta g at standard and delta g given?

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