Define the terms, 'osmosis' and 'osmotic pressure'. What is the advantage of using osmotic pressure as compared to other colligative for the determination of molar masses of solutes in solutions?

Explanation

Osmosis : The net spontaneous flow of the solvent molecules from the solvent to the solution or from a less concentrated solution to a more concentrated through a semipermeable membrane is called osmosis.
Osmotic pressure : The external pressure that must be applied to the solution side to stop the passage of solvent into the solution through a semi-permeable membrene, is known as osmotic pressure.
The osmotic pressure method has the advantage over other method as pressure measurement is around the room temperature and molarity of the solution is used instead of molality. As compare to other colligative properties, its magnitude is large even for every dilute solution.