First slide

Liquid state

Question

Benzoic acid is distributed between water and benzene. Concentration of benzoic acid in two layers are:
Conc. I II III
C(in H₂0) 0.1 M 0.2 M 0.3 M
C(in benzene) 0.01 M 0.04 M 0.09 M
Hence, benzoic acid is

Moderate

A

monomer in both layers
B

dimer in both layers
C

monomer in water and dimer in benzene
D

monomer in benzene and dimer in water

Solution

$\frac{Concentration of benzoic acid iu water}{Concentration of benzoic acid in benzene}$
$= \frac{C_{1}}{C_{2}} \neq constant$
hence, monomer in both layer is not possible but
$\frac{C_{1}}{\sqrt{C_{2}}} = constant.$
$\begin{array}{ccc} I & II & III \\ \frac{C_{1}}{\sqrt{C_{2}}} = 1, & \frac{C_{1}}{\sqrt{C_{2}}} = 1 & \frac{C_{1}}{\sqrt{C_{2}}} = 1 \end{array}$
Thus, it is monomer in water and dimer in benzene due to H-bonding.

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App