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{:("Electrolyte",^^.^(oo)(Scm^(2)mol^(-1...

`{:("Electrolyte",^^.^(oo)(Scm^(2)mol^(-1))),(KCl,149.9),(KNO_(3),145.0),(HCl,426.2),(NaOAc,91.0),(NaCl,126.5):}`
Calculate `^^_(HOAc)^(oo)` using appropriate molar conductance of the electrolytes listed above at infinite dilution in `H_(2)O` at `25^(@)C`

A

517.2

B

552.7

C

390.7

D

217.5

Text Solution

Verified by Experts

The correct Answer is:
C
`Lambda_(HOA C)^(@) = Lambda_(NaOAC)^(@) + Lambda_(HCl)^(@) - Lambda_(NaCl)^(@)`
`Lambda_(HOAC)^(@) = 91 + 426.2 - 126.5 cm^(2) mol^(-1)`
`Lambda_(HOAC)^(@) = 390.75 cm^(2) mol^(-1)`
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