Redox Reactions 2

Question 1

How to calculate EMF of cell ?

Answer 1

Negative half cell = oxidise ( go backwards )
Positive half cell = reduce (go forwards)
EMF= reduction - oxidation

Question 2

How to calculate Gibbs free energy from EMF ?

Answer 2

Gibbs = -n x F x Ecell
Faraday constant = 96,485 C/mol

Question 3

How to measure cell potential under non standard conditions ?

Answer 3

E = E° - (0.0591/n) x log (products/reactents)