Question

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

• A. dissociation
• B. association
• C. partial ionization
• D. complex formation

Answer 1

Answer: (B)

association

Answer 2

Acetic acid in benzene dimerize as,

$2 CH _{3} COOH \rightleftharpoons\left( CH _{3} COOH \right)_{2}$