(a) The molar conductivities at infinite dilution of potassium chloride, hydrochloric acid and potassium acetate are 130.1, 379.4 and 95.6 S `cm^(2)mol^(-1)` respectively. Calculate the value of molar conductivity at infinite dilution for acetic acid. (b) If the molar conductivity of given acetic acid solution is 48.5 S `cm^(2)mol^(-1)` at `25^(@)C`, calculate the degree of dissociation of acetic for acetic acid.

(a) The molar conductivities at infinite dilution of potassium chlorid

1.	(a) The molar conductivities at infinite dilution of potassium chloride, hydrochloric acid and potassium acetate are 130.1, 379.4 and 95.6 S `cm^(2)mol^(-1)` respectively. Calculate the value of molar conductivity at infinite dilution for acetic acid. (b) If the molar conductivity of given acetic acid solution is 48.5 S `cm^(2)mol^(-1)` at `25^(@)C`, calculate the degree of dissociation of acetic for acetic acid.
Answer» Correct Answer - `wedge^(@)=344.9ohm^(-1)cm^(2)mol^(-1);alpha=0.141` `wedge^(@)(CH_(3)COOH)=wedge^(@)(CH_(3)COOK)+wedge^(@)(HCl)-wedge^(@)(KCl)=95.6+379.4-130.1=344.9" S "cm^(2)mol^(-1)` `alpha=(wedge_(m)^(@))/(wedge_(m)^(@))=(48.5)/(344.5)=0.141`

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