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Osmotic pressure of 0.01 M sucrose at 27 °C (R = 0.0821 L·atm/(mol·K)) is approximately
A0.082 atm
B1.000 atm
C2.460 atm
D0.246 atm
Answer & Solution
Correct answer: D. 0.246 atm
1. Use π = CRT with C = 0.01 mol/L, T = 300 K.
2. π = 0.01 × 0.0821 × 300 = 0.246 atm.
3. This matches the standard van't Hoff equation for non-electrolytes.
_Source: Maharashtra Balbharati Std XII Chemistry, Ch 2 "Solutions" §2.9_
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