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Voltaic cells: Redox reactions, Oxidation, Reduction

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A voltaic cell has been constructed with an aluminum metal electrode in Al3+(aq) in one half-cell and a lead metal electrode in Pb2+(aq) in the other half-cell. The two half-cells have a saturated KCl bridge between them and an external wire connecting the metal electrodes completing the circuit.

a) Write the balanced net redox reaction.
b) Identify the anode, cathode, and the direction of flow of electrons in the external wire connecting the electrodes.
c) Where does oxidation take place? Write the oxidation half-reaction.
d) Where does reduction take place? Write the reduction half-reaction.
e) Which direction do the K+ and Cl- ions flow in the salt bridge?
f) Calculate E°cell assuming standard conditions.

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A voltaic cell has been constructed with an aluminum metal electrode in Al3+(aq) in one half-cell and a lead metal electrode in Pb2+(aq) in the other half-cell. The two half-cells have a saturated KCl bridge between them and an external wire connecting the metal electrodes completing the circuit.

a) Write the balanced net redox reaction.
Since lead has a larger electrode potential than does aluminum, lead will be ...

Solution Summary

This solution provides step-by-step equations and diagrams for questions involving voltaic cells

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