If E Cu+2 had been chosen as the standard reference electrode and had been assigned a potential of 0.00 V, what would the reduction potential of the hydrogen electrode be relative to it?

Answer 1

Ag.............0.8.........?

Cu ...........+0.34.........0

H..............0..........-0.34

Ni...........-0.23..........?

You just move everything down the page from Cu to h so you reduce everything by 0.34.