(i) Prove that osmotic pressure is a colligative property. (ii) Calculate the molar concentration of urea solution if it exerts an osmotic pressure of 2.45 atmosphere at 300K. [R= 0.0821 l. atm. mol1K−1]
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Solution
i) π=CRT ; Where π= osmotic pressure
and C= Molarity of the solution
Colligative property depend on number of solutes in a solution. Now, π depends also molarity of the solution.