The osmotic pressure of 1 M sodium chloride solution at 27 °C is :

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12.3 atm

24.6 atm

39.8 atm

49.2 atm

answer is B.

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Detailed Solution

NaCl→Na++Cl− 1M 1M 1MWe know πV=nRT;π=nRTV∴ Osmotic pressure π=1mol×0.0821LatmK−mol−×300K1L≃24.6atm.

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