Mole Fraction Calculator | Free Online Chemistry Tools

Mole Fraction Calculator

Calculate the mole fraction of components in a chemical mixture

Mole fractions will appear here

Understanding Mole Fractions

A mole fraction is the ratio of the number of moles of a particular component to the total number of moles in a mixture. It's a fundamental concept in chemistry used to describe the composition of solutions and mixtures.

How to Use This Calculator

  1. Enter the number of moles for the first component
  2. Enter the number of moles for the second component
  3. Click "Calculate" to see the mole fractions

Formula

The mole fraction (X) of a component is calculated using:

X₁ = n₁ / (n₁ + n₂)

Where:

  • X₁ is the mole fraction of component 1
  • n₁ is the number of moles of component 1
  • n₂ is the number of moles of component 2