Answer to Question #161116 in Physical Chemistry for Cat

Question

At 25 °C the specific conductance of 0.01 mol dm-3 aqueous solution of acetic acid is 1.63x10-2 Sm-1 and the molar conductance of infinite dilution is 390.7x10-4 Sm2mol-1 . Calculate degree of dissociation and dissociation constant of acetic acid.  

Answer 1

The specific conductance of a 0.01M solution of acetic acid at 298K is 1.65×10−4 ohm−1 cm−1. The molar conductance at infinite dilution for H+ ion and CH3​COO− ion are 349.1ohm−1 cm2mol−1 and 40.9ohm−1 cm2mol−1 respectively.