The first Faraday's law for electrolysis is an equation that links the mass of a chemical species added or removed at an electrode and the charge in an electrolytic cell.
The electrolysis equation describes the relation:
m = Z × Q
Where:
m is the mass in kg (kilogram);
Q is the charge in C (coulomb); and
Z is the electrochemical constant of proportionality in kg/C (kilograms per coulomb).
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