Mole Fraction (X)Chemistry
Mole Fraction Calculator (Solute, Solvent & Gas Mixtures)
Calculate mole fraction (X or chi) for liquid solutions and gas mixtures, total moles, and component mole percentages for Raoult's Law and thermodynamics.
Calculated Result
Solute Mole Fraction (X)
0.02fraction
Calculator Inputs
Quick select:
g/mol
Quick select:
Quick select:
g/mol
Quick select:
Solute Mole Fraction (X)
0.02fraction
Solvent Mole Fraction (X)
0.98 fraction
Solute Mole Percent (%)
1.96 %
Total Mixture Moles
5.1 mol
Solute Moles
0.1 mol
Solvent Moles
5 mol
Absolute Molar Ratio: Provides the fundamental basis for Raoult's Law and vapor-liquid phase equilibrium.
Mole Fraction Breakdown (Sum = 1)
Mole Fraction X
0.02 -(2%)
Solvent Mole Fraction (X)
0.98 fraction(98%)
Physical chemistry and thermodynamics tool for dimensionless mixture composition analysis.
Calculation Methodology
Mole Fraction (X) = Component Moles / Total Mixture Moles. Sum of all mole fractions strictly equals 1 (Sum of X_i = 1).
Frequently Asked Questions
Because it represents a direct ratio of moles to total moles (mol / mol), so the units cancel out completely.
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