1.

If equivalent conductance of 1M benzoic aid is 12.8ohm^(-1)cm^(2) and 288.42 ohm^(-1)cm^(2) respectively. Its egree of dissociation is

Answer»

0.39
`3.9%`
0.0035
`0.039%`

SOLUTION :`wedge_(m_(C_(6)H_(5)COOH))^(@)=wedge_((C_(6)H_(5)COO^(-)))^(@)+wedge_((H^(+)))^(@)`
`=42+288.42=330.42`
`ALPHA=(wedge_(m)^(@))/(wedge_(m)^(@))=(12.8)/(330.42)=3.9%`


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