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Problem on Osmotic Pressure of solution

The osmotic pressure of a 5% solution of cane sugar at 150oC  is (mol. wt. of cane sugar = 342)
(a) 4 atm (b) 3.4 atm (c) 5.07 atm (d) 2.45 atm

Answer: (c) Π = (5 x 0.0821 x 1000 x 423)/(342 x 100) = 5.07 atm

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