[jamisxv]

This is the question:
a galvanic cell has an iron electrode in a 0.10 M solution of FeSO4, and a copper electrode in a solution of CuSo4.  What is the molar concentration of Cu2 + when the cell potential is measured at 0.63 V at 25 degrees.

Fe2+ +2e- -> Fe   V = -0,45
Cu2+ +2e- -> Cu  V= 0,34

I know you have to use nernst equation , but i just cant figure it out. Please help :,)

[Borek]

Please read the forum rules. You have to show your attempts at answering the question/solving the problem to receive help, it is a forum policy.

Hint: treat each half cell separately.