Question

a solution of ethanol differs from a solution of propanoic acid in that the solution of propanoic acid...

Answer 1

Answer:

A solution of Proponic acid is more acidic than ethanol

The Boiling point of propanoic acid is more than ethanol

Explanation:

1.The boiling point of  propanoic acid  is more than the boiling point of ethanol because of H- bonding.

The electronegative O atom having the lone pair attracts the H of other molecule. Hence the molecules of ethanol show strong intermolecular H-Bonding.

CH3CH2OH-------OHCH2CH3

But in Propanoic acid CH3CH2COOH

This has more extensive H- bonding Because here H-bonding occur from two Oxygen atoms . One is C=O oxygen and other is -OH oxygen.

2.Propanoic acid is more acidic than ethanol because it has acidic Hydrogen . The anion formed after the removal of Hydrogen from Propanoic acid is stabilized by resonance but this does not occur in alcohol. look at the resonance of COO- of carboxylic acids;