Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasynumerical

The equivalent conductance of 1M benzoic acid is12.8ohm-1cm2and if the conductance of benzoate ion andH+ion at infinite dilution are42and288.42ohm-1cm2respectively. Calculate percentage of degree of dissociation.
Report your answer by rounding upto nearest whole number.

Answer:
4.00
Solution:

Λm(C6H5COOH)o=Λ(C6H5COO-)o+Λ(H+)o

=42+288.42=330.42

α=ΛmcΛmo=12.8330.42=3.9%

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed
2mℹ️ Source: PYQ_2020

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