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What is molarity?
Number of moles of solute dissolved per litre of solution — M = moles/volume(L)
What is molality?
Number of moles of solute per kilogram of solvent — m = moles/mass(kg)
What is mole fraction?
Ratio of moles of one component to total moles in the mixture
What is Raoult's law?
Partial vapour pressure of each component equals its mole fraction times its pure vapour pressure
What are colligative properties?
Properties depending only on number of solute particles, not their nature: vapour pressure lowering, boiling point elevation, freezing point depression, osmotic pressure
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