Hello, could anyone explain to me how to find the potential of an electrode of iron plunged in an electrolytic made of NiSO4?
The data I have is the standard electrode potential of Fe2+/Fe and Ni2+/Ni
Thanks!

Question

Hello, could anyone explain to me how to find the potential of an electrode of iron plunged in an electrolytic made of NiSO4?
The data I have is the standard electrode potential of Fe2+/Fe and Ni2+/Ni
Thanks!

preetha · Answer

Butchy. Fe is going to Fe2+ and Ni2+ will go to Ni. 
Usually electrode potentials are given as oxidations, Fe-> Fe2+ and Ni->Ni2+.  Your reaction is Fe+Ni2+--> Fe2+ + Ni.  So you will have to reverse the sign of the Ni->Ni2+ electrode potential and add the two.  Does that make sense?  Seems familiar?

anonymous · Answer

Yes it does, that rings a bell and the results in the end seems legit, thanks for your help :)