Using standard potentials given in the appendices, calculate the standard cell potentials and the equilibrium constants for the following reactions:
Cu(s) + 2Ag⁺(aq) ⭢ Cu²⁺(aq) + 2Ag(s)
Zn(s) + Fe²⁺(aq) ⭢ Zn²⁺(aq) + Fe(s)