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A solution of sucrose (molar mass = 342 ...

A solution of sucrose (molar mass = 342 g/mol) is prepared by dissolving 68.4 g of it per litre of solution, what is its osmotic pressure at 273 K?
`(R = 0.081 L atm K^(-1) mol^(-1))`

A

3.92 atm

B

4.48 atm

C

5.92 atm

D

29.4 atm

Text Solution

Verified by Experts

The correct Answer is:
B
`pi = CRT = W_(2)/(M_(2) xx V (dm^(3))) xx R xx T ` `= (68.4 xx 0.0821 xx 273)/(342 xx 1)=4.48 "atm"`
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