alleryOsmotic pressure π for dilute solution:
Aπ = MR
Bπ = pV
Cπ = nRT
Dπ = MRT (van't Hoff equation, M = molarity)
Answer & Solution
Correct answer: D. π = MRT (van't Hoff equation, M = molarity)
π V = nRT → π = (n/V)RT = MRT.
Pressure needed to prevent osmosis (solvent flow from pure side to solution side through semipermeable membrane).
Used to determine molar mass of polymers and proteins.
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