Calculate the \( \mathrm{pH} \) of \( 0.1 \mathrm{M} \) solution of pyridinium chloride, \( \mat...

Calculate the \( \mathrm{pH} \) of \( 0.1 \mathrm{M} \) solution of pyridinium chloride, \( \mathrm{C}_{5} \mathrm{H}_{6} \mathrm{~N}^{+} \mathrm{Cl}^{-} . \mathrm{K}_{b} \) for pyridine, \( \mathrm{C}_{5} \mathrm{H}_{5} \mathrm{~N} \) is \( 1.5 \) \( \times 10^{-9} \). Also calculate degree of hydrolysis of this salt in the solution.