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1) If I need to make voltaic cell with standard potential 1.477 V using Pt electrode...

1) If I need to make voltaic cell with standard potential 1.477 V using Pt electrode and aqueous solution (with salt bridge), which one should I choose for other electrode out of these option? Co (s), H2(g), Pb(s), Al(s), Li (s)

2) From O2 (g) + 4 H+ (aq) + 2 Fe (s) → 2 H2O (ℓ) + 2 Fe2+ (aq), E°cell = 1.670 V, how can I get ΔG° of the redox rxn, corrosion of iron in by oxygen? Can you please explain with details?

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