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Electrolysis Calculator

Chemistry
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Calculates the mass of a substance deposited or liberated during electrolysis, based on Faraday's laws of electrolysis.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Current (I), Time (t), Molar Mass (M), and Number of Electrons Transferred (n) in the units shown.

Step 2

Read Total Charge (Q) and Mass Deposited (m) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Copper Electrolysis

Current (I): 2 Amperes (A); Time (t): 3,600 Seconds (s); Molar Mass (M): 63.55 grams/mol (g/mol); Number of Electrons Transferred (n): 2 electrons

Total Charge (Q): 7,200 Coulombs (C); Mass Deposited (m): 2.371145774 grams (g)

Silver Electrolysis

Current (I): 0.5 Amperes (A); Time (t): 1,800 Seconds (s); Molar Mass (M): 107.87 grams/mol (g/mol); Number of Electrons Transferred (n): 1 electrons

Total Charge (Q): 900 Coulombs (C); Mass Deposited (m): 1.006197855 grams (g)

Gold Electrolysis

Current (I): 0.25 Amperes (A); Time (t): 7,200 Seconds (s); Molar Mass (M): 196.97 grams/mol (g/mol); Number of Electrons Transferred (n): 3 electrons

Total Charge (Q): 1,800 Coulombs (C); Mass Deposited (m): 1.224874333 grams (g)

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