Mass Percent Calculator
The mass percent concentration: mass of solute ÷ mass of solution × 100.
Result
Mass percent (%)
25.00
How it works
Mass % = solute ÷ solution × 100
Mass percent is the mass of the dissolved substance as a percentage of the total solution mass. A 25 g solute in 100 g of solution is 25%.
Advertisement
Frequently asked questions
Is it the same as w/w?
Yes — mass percent is often written % w/w (weight for weight).
What is the solution mass?
The solute plus the solvent together — the whole mixture.
Advertisement