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

question 91

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

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