Nernst Equation

Question 1

What is the difference between E and E naught?

Answer 1

E represents the nonstandard cell potential and E naught represents the standard cell potential.

Question 2

When calculating Q do we use liquids and solids?

Answer 2

No, only aqueous reactions.

Question 3

When do you use E=Ecell - RT/nF(lnQ)?

Answer 3

You would use this equation when the reaction given is not at a standard temperature of 25C or 293K.