Electrolysis Calculator (Faraday's Law)

Your details

Choose the unknown you want to calculate. The corresponding field below will be disabled.
Preset fills molar mass and valence automatically. Choose "Custom" to enter your own values.
Electrical current through the electrolytic cell in amperes.
A
Duration of electrolysis in seconds. 1 hour = 3600 s, 1 minute = 60 s.
s
The mass of substance you want to deposit. Used when solving for charge, current or time.
g
Percentage of applied current that goes toward the desired reaction. Industrial electroplating is typically 85-98%. 100% means no side reactions.
%
Mass deposited
5.9275g

Mass of substance produced or consumed at the electrode

Total charge (Q)18,000C
Moles deposited0.093279mol
Equivalents transferred0.1866eq
Deposition rate5.9275g/h
NoteAt 5 A for 3600 s (1.00 h) with 100.0% efficiency
Mass deposited (g)5.9275
Moles deposited (mol)0.093279
Rate (g/h)5.9275

5.9275 g of Cu deposited

  • 0.093279 mol of Cu is produced at the electrode.
  • Total charge transferred: 18000.00 C (5.0000 A-h).
  • At these settings the deposition rate is 5.9275 g/h.

Next stepThat is 1.00 hours of electrolysis. For thicker coatings, scale up time or current proportionally.

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