Write the reason of abnormality in molar masses.

XO chromosomal abnormality in humans causes

Write an explanatory note on abnormal molecular masses from colligative properties.

Define the following terms: (i) Abnormal molar mass (ii) Van't Hoff factor (i)

Derive a relation between density and molar mass of the gas.

Derive the relation between elevation of boiling point and molar mass of the solute .

Equal volumes of two gases A and B diffuse through a porous pot in 20 and 10 seconds respectively if the molar mass of A be 80 find the molar mass of B .

Explain the term 'colligative property'. Why do we sometimes get abnormal molecular masses of the substances using colligative properties of the solution?

Statement-1 : The observed molar mass of acetic acid in benzene is more than the normal molar mass of acetic acid. Statement-2 : Molecules of acetic and dimerise in benzene due to hydrogen bonding.

Given the relationship between the molar volume of a gas and its molar mass.

What are abnormal molar masses? Why are the molar masses abnormal ?