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IF 10 g of solute was dissolved in 2...

IF 10 g of solute was dissolved in 250 mL. of water and osmotic pressure of the solution was found to be 600 mm of Hg at 300 K, then molecular weight of the solute is _______.`g mol ^(-1)`

A

1000

B

1200

C

1400

D

1800

Text Solution

Verified by Experts

The correct Answer is:
B
`pi=(n)/(V)RT=(m//MRT/)/(V)`
`(600)/(760)=(20xx0.0821xx288xx1000)/(500xxM),M=1200`.
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