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Electrochemistry

Sequence of Expressions

The mass of a substance altered at an electrode during electrolysis is directly proportional to the quantity of electricity transferred at that electrode: m=ZQm = ZQ.
For a given quantity of electricity (electric charge), the mass of an elemental material altered at an electrode is directly proportional to the element's equivalent weight.
Relates the rate of an electrochemical reaction to the overpotential: η=Aln(ii0)\eta = A \ln \left(\frac{i}{i_0}\right).
Relates the diffusion current at a dropping mercury electrode to the concentration of the electroactive species.