Chemistry Practice Problems Ka and Kb Practice Problems Solution: The base-dissociation constant, K b, for pyridine ...

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Solution: The base-dissociation constant, K b, for pyridine (C 5H 5N) is 1.4 × 10 −9.  The acid-dissociation constant, K a, for the pyridinium ion (C 5H 5NH +) is __________. A) 1.4 × 10 −23      B) 1.0 × 10 −7      C) 7.1 × 10 −4     D) 7.1 × 10 −6      E) 1.4 × 10 −5

Problem

The base-dissociation constant, b, for pyridine (C 55N) is 1.4 × 10 −9.  The acid-dissociation constant, a, for the pyridinium ion (C 55NH +) is __________.

A) 1.4 × 10 −23     

B) 1.0 × 10 −7     

C) 7.1 × 10 −4    

D) 7.1 × 10 −6     

E) 1.4 × 10 −5