The Base-Dissociation Constant, K_b, for Pyridine, C₅H₅N, Is 1

question 112

Multiple Choice

The base-dissociation constant, K_b, for pyridine, C₅H₅N, is 1.4 × 10^-9. The acid-dissociation constant, K_a, for the pyridinium ion, C₅H₅NH⁺, is ________.

• A)1.0 × 10^-7
• B)1.4 × 10^-23
• C)7.1 × 10^-4
• D)1.4 × 10^-5
• E)7.1 × 10^-6