Nernst Equation

[Alexis Robles 2k]

When do we use the Nernst equation compared to the other equations for electrochemistry?

[105311039]

The Nernst equation, can be used for various things in electrochemistry. It can be used to calculate the concentration of a substance, maybe the pH, the cell potential, standard cell potential etc... However, i think the dead give away would be when they give you concentrations and/or pH's.

[TarynD_1I]

I believe we use the Nernst equation to find the cell potential at any point in a reaction

[Simon Ketema_1F]

The Nernst Equation is used to determine the cell potential under non-standard state conditions. So basically as the cell is progressing through the reaction and the concentrations are changing you can identify the instantaneous potential.

[Michelle N - 2C]

When do we use the Nernst equation compared to the other equations for electrochemistry?

In all honesty, I've been basing off what's given in the problem and what it asks. I know this is not the best way, but for me, this is how I've been going with it.

However, I do know that the simplified Nernst equation can be used if it was given that it's 25 degrees Celsius. The other form (the one with -2.303RT..) is then used if the problem needs a log to solve it.