Weak Bases dissociate according to the following equation: A- (aq) + H2O(L)  ⇌ OH- (aq) + A-(aq) In a lab experiment, a student needs to make a buffer solution with a pH of 9.220.  If the pKb of the weak base is 3.300, what ratio of weak base to conjugate acid is needed to make the buffer, I.e. what is the value of [A-/HA]? (Please provide your answer to 3 decimal places.)

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 119QRT
icon
Related questions
icon
Concept explainers
Question

Weak Bases dissociate according to the following equation:

A- (aq) + H2O(L)  ⇌ OH- (aq) + A-(aq)

In a lab experiment, a student needs to make a buffer solution with a pH of 9.220.  If the pKb of the weak base is 3.300, what ratio of weak base to conjugate acid is needed to make the buffer, I.e. what is the value of [A-/HA]?

(Please provide your answer to 3 decimal places.)

Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Knowledge Booster
Ionic Equilibrium
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry: The Molecular Science
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
Chemistry: Principles and Practice
Chemistry: Principles and Practice
Chemistry
ISBN:
9780534420123
Author:
Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
General, Organic, and Biological Chemistry
General, Organic, and Biological Chemistry
Chemistry
ISBN:
9781285853918
Author:
H. Stephen Stoker
Publisher:
Cengage Learning
Chemical Principles in the Laboratory
Chemical Principles in the Laboratory
Chemistry
ISBN:
9781305264434
Author:
Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:
Brooks Cole
Living By Chemistry: First Edition Textbook
Living By Chemistry: First Edition Textbook
Chemistry
ISBN:
9781559539418
Author:
Angelica Stacy
Publisher:
MAC HIGHER