Ecell = Eocell - (0.0592/n)log[(Cr^2+)/(Ni^2+)]
and you get Eocell by adding the OXIDATION for Cr to the REDUCTION of Ni^2+. I would do it here but the values in your text won't agree with the values in my OLD text.
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Cr2 ] = 0.859 M and [Ni2 ] = 0.0190 M. Standard reduction potentials can be found here.
Cr+Ni(2+) ->Cr(2+) + Ni
2 answers
3548h-869