In aqueous solution, pyridine (C5H5N) is a weak base that accepts a proton from water to form the hydroxide ion (OH-) and the pyridinium ion (C5H5NH+), according to thefollowing equation.C5H5N(aq) + H20(/) = OH (aq) + C5H5NH†(aq)The base-dissociation constant (Kb) for this base is 1.7x10-9. If the pH of the solution is 9.15, what is the initial concentration of pyridine? (Assume that the temperature is25°C.)M

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Answered: The base-dissociation constant (Kb) for…

The base-dissociation constant (Kb) for this base is 1.7x109, If the pH of the solution is 9.15, what is the initial concentration of pyridine? (Assume that the tempe 25°C.) M

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter9: Acids, Bases, And Salts

Section: Chapter Questions

Problem 9.109E

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Question

In aqueous solution, pyridine (C5H5N) is a weak base that accepts a proton from water to form the hydroxide ion (OH-) and the pyridinium ion (C5H5NH+), according to the
following equation.
C5H5N(aq) + H20(/) = OH (aq) + C5H5NH†(aq)
The base-dissociation constant (Kb) for this base is 1.7x10-9. If the pH of the solution is 9.15, what is the initial concentration of pyridine? (Assume that the temperature is
25°C.)
M

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