basic

Mole Fraction to Mass Percent (Binary Mixture) Calculator

mass% A = (x_A · M_A) / (x_A · M_A + x_B · M_B) × 100.

Convert the mole fraction of component A in a binary mixture to mass-percent (and vice-versa for component B), given the molar masses of both species: mass% A = (x_A · M_A) / (x_A · M_A + (1 − x_A) · M_B) · 100. Useful for polymer blends, alloys, and aqueous solutions of two solutes.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

g/mol
g/mol

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

mass% A = (x_A · M_A) / (x_A · M_A + x_B · M_B) · 100, x_B = 1 − x_A.

In depth

Convert the mole fraction of component A in a binary mixture to mass-percent (and vice-versa for component B), given the molar masses of both species: mass% A = (x_A · M_A) / (x_A · M_A + (1 − x_A) · M_B) · 100. Useful for polymer blends, alloys, and aqueous solutions of two solutes.