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Osmotic Pressure

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Question

Calculate the osmotic pressure (in atm) of a solution obtained by mixing 100 mL of 3.0% (m/V) solution of urea (molecular mass = 60) and 100 mL of 1.71% (m/V) solution of cane sugar(molecular mass = 342) at $327^{\circ} C .$

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Solution

$Π = C R T$
$= \frac{3.0}{60} + \frac{1.71}{342}) \times \frac{1000}{200} \times 0.082 \times 600$ $= 13.53$

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