Question

electrode potential of a galvanic cell determined?
A)E°cathode - E°anode

B)E°anode - E°cathode

C)E°anode + E°cathode

D)E°anode x E°cathode

Answer 1

It's gotta be cathode - anode since anode is negative, it will then become positive with this extra negative sign in the equation. (Basically). See, in order for a galvanic cell to work (a BATTERY!) you need to have a positive electric potential. If you don't, you have a dead battery.

Answer 2

thanks:)