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Mole fraction (χ) = moles of component / total moles; used in colligative properties, partial pressure, solution equilibria.

Trin-for-trin guide

  1. 1Input moles of each component
  2. 2Calculate mole fraction of each
  3. 3Apply in Raoult's law, Henry's law, etc.

Løste eksempler

Input
Solution: 1 mol ethanol, 4 mol water
Resultat
χ_ethanol = 0.2, χ_water = 0.8

Almindelige fejl at undgå

  • Confusing mass and mole percentages
  • Not summing to 1.0 for all components

Ofte stillede spørgsmål

How does mole fraction differ from mass fraction?

Mole: counted particles; mass: weighs compounds; related by molar mass.

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