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)
Appendix info:
Cu2+ + 2e --> Cu(s) E=0.337
Ag+ + e --> Ag(s) E=0.779
Zn2+ + 2e --> Zn(s) E=-0.763
Fe2+ +2e -->Fe (s) E=-0.440