20. Electrochemistry

Calculate the standard cell potential (E°cell) for the reaction X(s) + Y⁺(aq) ⇌ X⁺(aq) + Y(s) if the equilibrium constant (K) is 7.12×10⁻³. Answer: E°cell = ________ V

Calculate the standard cell potential for the reaction: Cd(s) + Sn²⁺(aq) → Cd²⁺(aq) + Sn(s). Given the standard reduction potentials: E°(Cd²⁺/Cd) = -0.40 V and E°(Sn²⁺/Sn) = -0.14 V.

Calculate the equilibrium constant (K) for an oxidation–reduction reaction (n = 2) with a standard cell potential (E°) of -0.51 V.

What is the standard cell potential (E°_cell) for the voltaic cell represented by the following cell diagram? Pt | H2(g, 1 atm) | 0.0025 M HCl || H+ (1 M) | H2(g, 1 atm) | Pt