Enter the moles of solute and moles of sloven into the mole fraction calculator below. The mole fraction is a ratio of moles of solute to total moles.

## Mole Fraction Formula

The following formula is used in the mole fraction calculator above:

Mole Fraction(X_{i}) = Moles of Solute / (Moles of Solute + Moles of Solvent)

- Where X
_{i}is the mole fraction as a ration, not a percent.

## What is a mole fraction?

The mole fraction can be defined as the amount of moles of a solute divided by the total amount of moles of the solution. This can be see in the equation given above. A mole fraction can be converted into a mole percent, or molar percentage by multiplying the result of the mole fraction by 100.

Unlike molar concentration, the mole fraction is a ratio of moles to moles. A molar concentration is a ratio of moles to volume.

## How to calculate a mole fraction

The following example is a step by step guide on how to calculate a mole fraction. This example follows the formula given above.

- First, the total amount of moles of solute and solvent need to be calculated. This can be done through measuring the mass and determining the number of moles per unit mas.
- The next step is to separate the solute and repeat step one.
- Finally, enter the information into the formula or calculator above.
- Analyze the results.

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