By Neha Tripathi | Updated March 24, 2022

The mole fraction of a component in a mixture represents the proportion of that component relative to the entire mixture. Expressed as a ratio of moles, it is a fundamental measure of concentration in solution chemistry.

Step 1: Determine the moles of the solute

Use the equation: moles of solute = mass of solute / molecular mass of solute.

Step 2: Determine the moles of the solvent

Use the equation: moles of solvent = mass of solvent / molecular mass of solvent.

Step 3: Calculate the mole fraction of the solute

mole fraction of solute = moles of solute ÷ (moles of solute + moles of solvent).

Step 4: Calculate the mole fraction of the solvent

mole fraction of solvent = moles of solvent ÷ (moles of solute + moles of solvent).