Alevel Chemistry: Electrode potentials

Electrode potentials

Voltaic cells: a system which converts chemical energy into electrical. Voltaic cells are made of two half cells which each contain a chemical species present in a redox half equation.

There are two main types of voltaic cells:

metal/metal ion half cells- contain a metal rod in a solution of its aqueous ions

ion/ion half cells- ions of the same element in different oxidation states with an inert metal electrode

Electrode Potential

The tendency to be reduced and gain electrons is measured as standard electrode potential: E. The standard against all other values are…