Question

( 2 define osmosis and Osmotic pressure.
How the molecular mass of an non
valatile and non-electrolyte solute is ,
determine with the help of osmotic
pressure measurement ?​

Answer 1

Answer:

Osmotic pressure symbol= π

π∝C [Molarity]

π∝T

∴π=STC where S= solution constant

∵ Molarity= (V) Volume in litresMoles and moles= Molar mass(m)weight(W)

∴π=mW×V1×S.T⟶ From this equation molar mass can be determined.

Explanation:

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Answer 2

Answer:

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Explanation:

Osmosis-

A process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

Osmotic pressure

Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. It is also defined as the measure of the tendency of a solution to take in pure solvent by osmosis.

Determination of molecular mass of non-volatile solute from osmotic pressure. The osmotic pressure is a colligative property. For a given solvent the osmotic pressure depends only upon the molar concentration of solute but does not depend upon its nature. (b) The solution must be dilute.