Mole Fraction Calculator
Calculate the Ratio of Substances in Your Solution
Results
Solute Mole Fraction (XA)
0.33
Solvent Mole Fraction (XB)
0.67
Understanding Mole Fractions
What is a Mole Fraction?
A mole fraction (X) represents the ratio of moles of a particular component to the total moles of all components in a mixture. It's a fundamental concept in chemistry that helps understand solution composition.
The Formula
XA = nA / (nA + nB)
Where:
XA = mole fraction of component A
nA = number of moles of component A
nB = number of moles of component B
Key Properties
- Mole fractions are dimensionless
- The sum of all mole fractions in a mixture equals 1
- Values always range between 0 and 1
- Used in various chemical calculations including Raoult's law