Conductance

We are given the following molar conductance values:
-

%5Clambda_m(%5Ctext%7BKCl%7D)%20%3D%20152%20%5C%2C%20%5Ctext%7Bcm%7D%5E2%20%5C%2C%20%5Ctext%7Bohm%7D%5E%7B-1%7D

%5Clambda_m(%5Ctext%7BHCl%7D)%20%3D%20425%20%5C%2C%20%5Ctext%7Bcm%7D%5E2%20%5C%2C%20%5Ctext%7Bohm%7D%5E%7B-1%7D

%5Clambda_m(%5Ctext%7BCH%7D_3%20%5Ctext%7BCOOK%7D)%20%3D%2091%20%5C%2C%20%5Ctext%7Bcm%7D%5E2%20%5C%2C%20%5Ctext%7Bohm%7D%5E%7B-1%7D

The molar conductance of

%5Ctext%7BCH%7D_3%20%5Ctext%7BCOOH%7D

at infinite dilution can be found using the relationship:

%5Clambda_m%20(%5Ctext%7BCH%7D_3%20%5Ctext%7BCOOH%7D)%20%3D%20%5Clambda_m%20(%5Ctext%7BCH%7D_3%20%5Ctext%7BCOOK%7D)%20%2B%20%5Clambda_m%20(%5Ctext%7BHCl%7D)%20-%20%5Clambda_m%20(%5Ctext%7BKCl%7D)

Substituting the given values:

%5Clambda_m%20(%5Ctext%7BCH%7D_3%20%5Ctext%7BCOOH%7D)%20%3D%2091%20%2B%20425%20-%20152%20%3D%20364%20%5C%2C%20%5Ctext%7Bcm%7D%5E2%20%5C%2C%20%5Ctext%7Bohm%7D%5E%7B-1%7D

Thus, the molar conductance of

%5Ctext%7BCH%7D_3%20%5Ctext%7BCOOH%7D

at infinite dilution is 364 cm

%5E2

ohm

%5E%7B-1%7D

Chapter Questions
1 MCQs