An ammonia/ammonium buffer solution contains 0.31 M NH3 and 0.74 M NH4+. The Kp value of ammonia is 1.8 × 10-5. Calculate the pH of this buffer. Express the pH numerically.
An ammonia/ammonium buffer solution contains 0.31 M NH3 and 0.74 M NH4+. The Kp value of ammonia is 1.8 × 10-5. Calculate the pH of this buffer. Express the pH numerically.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![I Review | Constants | Periodic Table
A buffer consists of a weak acid or base, and the
conjugate of that acid or base.
Consider a buffer made by combining the weak
base B with its conjugate acid, BH+:
Part A
B(aq) + H2O(1)
ВH (аq) + ОН (аq)
[BH+][OH
[B]
An ammonia/ammonium buffer solution contains 0.31 M NH3 and 0.74 M NH4+. The Kp value of ammonia is 1.8 x 10-5.
Calculate the pH of this buffer.
Къ
Express the pH numerically.
The OH- concentration of this buffer can be
calculated using the Kp expression:
» View Available Hint(s)
K B]
=[-HO]
BH+]
?
pH =
Submit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F141c66cb-062d-4578-8c17-7fdb89d3aa91%2F46eee26d-637c-4357-a4b6-bbe29acd74c2%2Fj0am40o_processed.png&w=3840&q=75)
Transcribed Image Text:I Review | Constants | Periodic Table
A buffer consists of a weak acid or base, and the
conjugate of that acid or base.
Consider a buffer made by combining the weak
base B with its conjugate acid, BH+:
Part A
B(aq) + H2O(1)
ВH (аq) + ОН (аq)
[BH+][OH
[B]
An ammonia/ammonium buffer solution contains 0.31 M NH3 and 0.74 M NH4+. The Kp value of ammonia is 1.8 x 10-5.
Calculate the pH of this buffer.
Къ
Express the pH numerically.
The OH- concentration of this buffer can be
calculated using the Kp expression:
» View Available Hint(s)
K B]
=[-HO]
BH+]
?
pH =
Submit
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