Home > Faraday's law of electrolysis

• The mass of a substance produced at an electrode during electrolysis is proportional to the number of moles of electrons transferred at that electrode
• The number of Faradays required to discharge one mole of substance at an electrode is equal to the number of charges on that ion

n = m/M = I·t / (z·F)

n = amount of substance / mol

m = mass / g

M = molecular weight / (g/mol)

z = number of "excess" electrons

I = current / A

t = time / s

F = Faradayn constant (96500 C/mol)