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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 osmostic pressure ( R= 0. 0 82 L atm `K ^(-1) mol ^(-1) ) at 273 K ` ?

A

`4.48 ` atm

B

2 atm

C

1 atm

D

5 atm

Text Solution

Verified by Experts

The correct Answer is:
A
Sucrose is non ionisable I =1
`pi = i` CRT
` = 1 xx ((68. 4)/( 342))/(1) ( 0. 0 82) xx 273`
`= 4. 447 atm`
`~~ 4. 48 atm`
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