What is the relation between ABNORMAL MOLAR MASS and MOLAR MASS ??
Answers
Answer:
Abnormal Molecular Masses. Molecular masses can be calculated by measuring any of the colligative properties. The relation between colligative properties and molecular mass of the solute is based on following assumptions. ... (2) The solute neither undergoes dissociation nor association in solution.
Abnormal Molar Mass
Molecular masses of the solute can be easily determined with the help of colligative properties; relative lowering in vapour pressure, boiling point elevation, freezing point depression, and osmotic pressure easily. But, we derived the relation between the molecular mass of solute and colligative properties under some assumptions, which are:
The solution is diluted that is, solvent is available in large amount in order to obey Raoult’s Law
The solute neither went dissociation or association in the solution
So, how do we determine the molecular mass of solute in case the above assumptions are not valid? Basically, the abnormality is due to:
Association of Solute Particles
Dissociation of Solute P
Abnormal Molar Mass
Molecular masses of the solute can be easily determined with the help of colligative properties; relative lowering in vapour pressure, boiling point elevation, freezing point depression, and osmotic pressure easily. But, we derived the relation between the molecular mass of solute and colligative properties under some assumptions, which are:
The solution is diluted that is, solvent is available in large amount in order to obey Raoult’s Law
The solute neither went dissociation or association in the solution
So, how do we determine the molecular mass of solute in case the above assumptions are not valid? Basically, the abnormality is due to:
•Association of Solute Particles
•Dissociation of Solute Particles
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