Standard REDUCTION potentials
What is Eo for the reverse reaction ?
The value for the REDUCTION 1/2-cell is the negative of
that for the OXIDATION 1/2-cell:
Zn ? Zn2+ (aq) + 2e- Eo = +0.76 V
Zn2+ + 2e- ? Zn Eo = -0.76 V
Zn ? Zn2+ (aq) + 2e- Eo = +0.76 V
Q. Relative to H2 is Zn a (better/worse) reducing agent ?
A. Zn is a better reducing agent than H2.