1.

The percentage of pyridine `(C_(5)H_(5)N)` that forms pyridinium ion `(C_(5)H_(5)N^(+)H)` in a 0.10 M aqueous pyridine solution (`K_(b)` for `C_(5)H_(5)N=1.7xx10^(-9)`) isA. 6.0E-5B. 0.00013C. 0.0077D. 0.016

Answer» Correct Answer - B
`alpha=sqrt((K_(b))/(C))` ltBrgt `=sqrt((1.7xx10^(-9))/(0.1))`
`=sqrt(1.7xx10^(-8))`
`=1.3xx10^(-4)`
`=1.3xx10^(-2)%`


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