Here are two standard reduction potentials hco2- 2 h2o 2

Question

Here are two standard reduction potentials:

HCO₂^- + 2 H₂O + 2 e^- → HCHO + 3 OH^-E°= -1.07

HCO₂H + 2 H₃O⁺ + 2 e^- → HCHO + 3 H₂OE°= -0.01

1. If these data are sufficient to allow calculation of K_a for HCO₂H at 298 K do the calculation.
2. If not, choose additional data you would need to do the calculation:

• There is no need of additional data.
• ΔS°_f of all reactants.
• Value of system.
• ΔG°_f of all reactants.
•  ΔH°_f of all reactants.