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Mole fraction (χ) = moles of component / total moles; used in colligative properties, partial pressure, solution equilibria.
Guide étape par étape
- 1Input moles of each component
- 2Calculate mole fraction of each
- 3Apply in Raoult's law, Henry's law, etc.
Exemples résolus
Entrée
Solution: 1 mol ethanol, 4 mol water
Résultat
χ_ethanol = 0.2, χ_water = 0.8
Erreurs courantes à éviter
- ✕Confusing mass and mole percentages
- ✕Not summing to 1.0 for all components
Questions fréquentes
How does mole fraction differ from mass fraction?
Mole: counted particles; mass: weighs compounds; related by molar mass.
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