If equivalent conductance of 1 M benzoic acid is 12.8 `ohm^(-1) cm^(2)` and if the conductance of benzoic ion and `H^(+)` ion are 42 and 288.42 `ohm^(-1)` respectively, its degree of dissociation isA. 0.39B. 0.039C. 0.0035D. 0.00039

If equivalent conductance of 1 M benzoic acid is 12.8 `ohm^(-1) cm^(2)

1.	If equivalent conductance of 1 M benzoic acid is 12.8 `ohm^(-1) cm^(2)` and if the conductance of benzoic ion and `H^(+)` ion are 42 and 288.42 `ohm^(-1)` respectively, its degree of dissociation isA. 0.39B. 0.039C. 0.0035D. 0.00039
Answer» Correct Answer - B `(^^_(C_(6)H_(5)COOH)^(@))=lambda_(C_(6)H_(5)COO^(-))^(@)+lambda_(H^(+))^(@)` `=42+288.42=330.42` `alpha=(^^_( m)^(@))/(^^_( m)^(@))=(1 2.8)/(330.42)= 0.03 9=3.0%`

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If equivalent conductance of 1 M benzoic acid is 12.8 `ohm^(-1) cm^(2)` and if the conductance of benzoic ion and `H^(+)` ion are 42 and 288.42 `ohm^(-1)` respectively, its degree of dissociation isA. 0.39B. 0.039C. 0.0035D. 0.00039

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