Calculate the pH of 0.45 M solution of methylamine, CH3NH2 , and 0.25 M methylammonium bromide CH3NH3BR. The base dissociation constant, Kb is 4.38 x10-4 A)What is the pH if 42 mL of 0.5 M of a strong acid, like HCI, is added to 100 mL of the buffer solution? B) What if a strong base like NaOH, is added with the same amount instead?

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter15: Additional Aqueous Equilibria
Section: Chapter Questions
Problem 28QRT: Calculate the pH change when 10.0 mL of 0.100-M NaOH is added to 90.0 mL pure water, and compare the...
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Calculate the pH of 0.45 M solution of methylamine, CH3NH2 , and 0.25 M methylammonium bromide CH3NH3BR. The base dissociation constant, Kb is 4.38 x10-4

A)What is the pH if 42 mL of 0.5 M of a strong acid, like HCI, is added to 100 mL of the buffer solution?

B) What if a strong base like NaOH, is added with the same amount instead?

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