The limiting molar conductivities of HCl, CH_(3)COONa and NaCl are respectively 425,90 and 125 mho cm^(2)mol^(-1) at 25^(@)C. The molar conductivity of 0.1 M CH_(3)COOH solution is 7.8 mho cm^(2)mol^(-1) at the same temperature. The degree of dissociation of 0.1 M acetic acid solution at the same temperature is

The limiting molar conductivities of HCl, CH_(3)COONa and NaCl are res

1.	The limiting molar conductivities of HCl, CH_(3)COONa and NaCl are respectively 425,90 and 125 mho cm^(2)mol^(-1) at 25^(@)C. The molar conductivity of 0.1 M CH_(3)COOH solution is 7.8 mho cm^(2)mol^(-1) at the same temperature. The degree of dissociation of 0.1 M acetic acid solution at the same temperature is
Answer» 0.1 0.02 0.15 0.03 Solution :`WEDGE^(@)` for `CH_(3)COOH=lamda_(CH_(3)COO^(-))^(@)+lamda_(Na^(+))^(@)` `lamda_(H^(+))^(@)+lamda_(Cl^(-))^(@)-lamda_(Na^(+))^(@)-lamda_(Cl^(-))^(@)` `=lamda_(CH_(3)COO^(-))^(@)+lamda_(H^(+))^(@)` `=90+425-125=390mho" "cm^(2)mol^(-1)` DEGREE of DISSOCIATION`(alpha)=(wedge_(m)^(@))/(wedge_(m)^(@))=(7.8)/(390)=0.02`