First slide

Theory of dilute solutions

Question

The osmotic pressure of a solution (density is 1 g mL^-1) containing 3 g of glucose (molecular weight - 180) in 60 g of water at 15 $°$ C is

Moderate

Solution

$π \times \frac{63}{1000} = \frac{3}{180} \times 0.0821 \times 288 ∴ π = 6.25 atm ∵ V_{solution} = Weight of solution \times Density = (60 + 3) \times 1 = 63 mL$

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