Calculate the Percentage of Pyridine (C₅H₅N) That Forms Pyridinium Ion

Multiple Choice

Calculate the percentage of pyridine (C₅H₅N) that forms pyridinium ion, C₅H₅NH⁺, in a 0.10 M aqueous solution of pyridine (K_b = 1.7 × 10^-9) .

A) 0.77%
B) 0.060%
C) 0.0060%
D) 1.6%
E) 0.013%