Question

What is meant by abnormal molecular mass illustrate it with suitable example

Answer 1

the abnormal molecular mass of solute  in solution is the molecular mass which is  different  from the theorectically  expected value. it arise  due to either  association or dissociation of molecules in the solution

Answer 2

Answer:

Abnormal molar masses are those that are calculated for the molar masses and are either greater or lower than the predicted value. Utilizing the colligative characteristics, they are computed.

Explanation:

When the estimated molar masses differ from the anticipated value in chemistry, they are referred to as anomalous molar masses.

These are computed using the colligative properties.

Collaborative characteristics include an increase in boiling point, a decrease in relative vapor pressure, a decrease in freezing point, and a reduction in osmotic pressure.

Since the term abnormal appears in the name, it is implied that the Van't Hoff factor's use in computing molar masses is abnormal.

These procedures do not provide mole masses that match predictions or theoretical values. Only after the first two requirements are satisfied can the precise value of the molar mass be determined.

The solutions should be diluted: The colligative qualities should not be measured with too concentrated of a solution. In concentrated solutions, the particles engage in interactions with both the solvent and one another. Vapour pressure thus depends on the type of the solute, not only the number of solute particles, as do other conjugate qualities.

Hence, the meaning of abnormal molecular mass is explained above.

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