Free Mass Deposited Calculator

Calculate the mass deposited during electrolysis from the total charge passed, molar mass of the substance, and charge number of the ion.

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C
g/mol

Mass Deposited

20.124 g

Moles Deposited0.186557 mol

Mass Deposited vs Total Charge (Q)

View formula & how it works →

Mass from Charge in Electrolysis

Formula

m = (Q × M) / (z × F)

Where:

  • m = mass deposited (g)
  • Q = total charge passed (C) = I × t
  • M = molar mass (g/mol)
  • z = charge number
  • F = 96485 C/mol

    • This is Faraday's Law expressed in terms of total charge rather than current and time.

    Example Calculation

    Pass 18,000 C through a silver nitrate solution (M = 107.87, z = 1).

    1. 01m = (Q × M) / (z × F)
    2. 02m = (18000 × 107.87) / (1 × 96485)
    3. 03m = 1,941,660 / 96485
    4. 04m = 20.124 g of silver

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