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Find out the osmotic pressure of 0.25 M ...

Find out the osmotic pressure of 0.25 M aqueous solution of Urea at `27^@ `C. (R = 0.082 Lit. atm./mol. K., R = 1.987 Cal.)

A

`0.615 ` atm

B

6.15 atm

C

61.5 atm

D

0.615 atm

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