Solutions and Colligative PropertiesmediumMCQ SINGLE

A solution having 54 g of glucose per litre has an osmotic pressure of 4.56 bar. If the osmotic presSolutions and Colligative Properties Chemistry Question

Question

A solution having 54 g of glucose per litre has an osmotic pressure of 4.56 bar. If the osmotic pressure of a urea solution is 1.52 bar at the same temperature, what would be its concentration?

Answer: D

💡 Solution & Explanation

$\frac{\pi_1}{\pi_2} = \frac{C_1}{C_2}$. For glucose, $C_1 = 54/180 = 0.3$ M. $\frac{4.56}{1.52} = \frac{0.3}{C_2} \implies 3 = \frac{0.3}{C_2} \implies C_2 = 0.1$ M. Therefore, correct answer is D.

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