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A solution is prepared by dissolving 0.6 g of urea (molar mass = 60 g mol –1 ) and 1.8 g of glucose (molar mass = 180 g mol –1 ) in 100 mL of water at 27ºC. The osmotic pressure of the solution is : (R = 0.08206 L atm K –1 mol –1 )

1. 8.2 atm
2. 2.46 atm
3. 4.92 atm
4. 1.64 atm

Correct answer: 4.92 atm

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