Mole Fraction

Definition

Mole fraction is a way of expressing concentrations for mixtures of liquids or solids. It represents the number of moles of one component divided by total moles in solution or mixture.

Related terms

Molarity: A concentration term used often in chemistry which measures moles solute per liter solution.

Molality: Another concentration term which measures moles solute per kilogram solvent.

Mole: A unit of measurement in chemistry that quantifies the amount of a substance. It is equivalent to Avogadro's number (6.022 x 10^23) of particles (atoms, molecules, ions etc.).