alleryOsmotic pressure π = nRT/V (or CRT for molarity C). What is π for 0.1 M sugar solution at 27°C (R = 0.0821)?
A2.46 atm
B24.6 atm
C0.246 atm
D246 atm
Answer & Solution
Correct answer: A. 2.46 atm
π = CRT = 0.1 × 0.0821 × 300 ≈ 2.46 atm.
Osmotic pressure is substantial even at modest concentrations.
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