Calculating Cell Voltage
If we know Eo for each half-reaction, we can calculate Eo for the net reaction.
- Balanced half-reactions can be added together
to get the overall, balanced equation.
Cathode: 2 H2O + 2e- ? 2 OH- + H2
Net rxn: 2 I- + 2 H2O ? I2 + 2 OH- + H2