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The molar conductance of acetic acid at ...

The molar conductance of acetic acid at infinite dilution if `Lambda^@` for `CH_3 COONa,NACI` and ` HCI` are `91.0, 126.5` and `426.2 S cm^2 "mol"^(-1)` respectively is :

A

` 517.2`

B

`552.7`

C

` 390.7`

D

`217.5`

Text Solution

Verified by Experts

The correct Answer is:
C
`Lambda_(CH_3COOH)^(@) = Lambda_(CH_3COONa)^@+Lambda_(HCI)^@ -Lambda_(NaCI)^2`.
` =91.0 + 436.2 - 126.5 = 390.7 S cm^2 mol^(-1)`.
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A2Z-ELECTROCHEMISTRY-Section D - Chapter End Test
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