Question

To create voltage in a battery, you need a difference in potential between compounds. What is the difference between the zinc potential of -0.41 volts and the iron potential of 0.76 volts? volts

Answer 1

Explanation:

In a redox reaction involving Iron and Zinc, the Zinc will serve as the anode, and Iron the cathode. The zinc anode will oxidize and provide electrons for the reduction of Fe2+(aq) to elemental iron.

E°cell = E°cathode - E°anode

= 0.76 - (-0.41)

= +1.17 V

Answer 2

V=1.17 v

Explanation:

The difference in potential between two points can be described as: potencial of the iron less potential of the zinc, that is:
`V= 0.76-(-0.41)`

Which can be rewrite as: V= 0.76 v + 0.41 v

V=1.17 v