Mass Percent Calculator

Find the mass percent of a solute in a solution.

Solute mass

Solution mass

Mass percent (%) 12.5

Formula: mass % = solute ÷ solution × 100

Step-by-step with your numbers:

1. Values used:

2. Solute mass = 25

3. Solution mass = 200

5. Mass percent = 12.5%

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The mass of solute as a percentage of the whole solution.

The math behind it

mass % = solute mass ÷ total solution mass × 100 (solution mass includes the solvent).

25 g salt in 200 g solution → 12.5%.

Solution vs solvent mass?

Use the total solution mass (solute + solvent).