Answer: Determining Half-Reactions at Electrodes and

Chapter , Problem 2PE

(choose chapter or problem)

Problem 2PE

Determining Half-Reactions at Electrodes and Calculating Cell Potentials

A voltaic cell is based on the two standard half-reactions

Cd2+(aq) + 2 e–→ Cd(s)

Sn2+(aq) + 2 e–→ Sn(s)

Use data in Appendix E to determine

(a) which half-reaction occurs at the cathode and which occurs at the anode and, (b) the standard cell potential.

A voltaic cell is based on a Co2+ /Co half-cell and a AgCl/Ag half-cell.

(a) What half-reaction occurs at the anode? (b) What is the standard cell potential?