Determination of the molar mass of acetic acid in benzene using freezing point depression is affected by:

Determination of the molar mass of acetic acid in benzene using freezing point depression is affected by:

  1. Complex formation
  2. Association
  3. Partial ionization
  4. Dissociation

Solution

Acetic acid in benzene undergoes dimerization

2CH3COOH⇌CH3COOH2

due to which Von't hoff factor i<1 and i=Theoretical molar massExperimental molar mass

Asked in: JEE Main 2015 (11 Apr Online)

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