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Question $13$

The $K_b$ for $C_5{H}_{5}N=1\mathrm{.}7{10}^{-9}.$ What is the $pH$ of a $0\mathrm{.}30M$ solution of $C_5{H}_{5}N?$

$\backslash$table$[[8\mathrm{.}98],[9\mathrm{.}35],[11\mathrm{.}02],[10\mathrm{.}41],[9\mathrm{.}16]]$

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