1. The problem statement, all variables and given/known data I attached a picture and I am confused by Part C. The standard potential is given Eo=1.21 2. Relevant equations Ecell=Eocell-RTlnQ/nF R=8.3145 T=298.15 F=96485 Q=activity products/ activity reactants 3. The attempt at a solution My problem with this question is finding Q. Fe(s) -> Fe2+(aq) + 2e- Fe3+(aq) + e- -> Fe2+(aq) Balanced equation (is this right?): 2Fe3+(aq) + Fe(s) -> 3Fe2+(aq) As suggested in the problem, the [Fe2+] of both half cells are different. Thus I do not know how to set up my Q, assuming that my balanced equation is correct.