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

Why do we get abnormal molecular masses of the substances using colligative properties of solutions only sometimes ? What are the natures of these abnormalities?

Calculate the molar mass of ammonia.

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

Calculate the molar mass of H_2SO_4

Calculate the percentage degree of dissociation of an electrolyte XY_(2) (Normal molar mass =164 ) in water if the observed molar mass by measuring elevation in boiling point is 65.6 :

Write the reason of abnormality in molar masses.

A mixture of methane and ethane in the molar ratio of x:y has a mean molar mass of 20. what would be the mean molar mass, if the gases are mixed in the molar ratio of y:x?

A mixture of methane and ethane in the molar ratio of x:y has a mean molar mass of 20. what would be the mean molar mass, if the gases are mixed in the molar ratio of y:x?

The mass of 5.6 litres of a certain gas at S.T .P. is 12 g. What is the relative molecular mass or molar mass of the gas ?

If M_("normal") is the normal molecular mass and alpha is the degree of ionization of K_(3)[Fe(CN)_(6)] , then the abnormal molecular mass of the complex in the solution will be :