20. Electrochemistry

Which equation is used to calculate the theoretical cell potential (E^ext{cell}) under standard conditions for a galvanic cell?

What is the standard cell potential (E°cell) in volts for a redox reaction where one electron is transferred and the equilibrium constant (K) is 7.23 × 10^8?

Calculate the standard cell potential (E^ext{cell}) at 25^ext{o}C for the following reaction: Zn(s) + Cu^{2+}(aq) → Zn^{2+}(aq) + Cu(s). Given: E^ext{o}_{ext{Zn}^{2+}/ext{Zn}} = -0.76 V, E^ext{o}_{ext{Cu}^{2+}/ext{Cu}} = +0.34 V.

Calculate the standard cell potential for the electrochemical cell: Pb2+(aq) + Mn(s) → Pb(s) + Mn2+(aq). Given the standard reduction potentials: E°(Pb2+/Pb) = -0.13 V and E°(Mn2+/Mn) = -1.18 V.