A solution is made by dissolving 0.1283 g of the acid form of the buffer TRIS (molecular mass = 157.60 g/mol) along with 0.1975 g of the basic form of TRIS (molecular mass = 121.136 g/mol). The pK a of TRIS is 8.08. A very small amount of potassium dihydrogen phosphate is added (not enough to cause any change in the pH). What is the fractional amount of the potassium dihydrogen phosphate that is in the PO 4 3- form? Phosphoric acid is a triprotic acid with pK a1 = 2.16, pK a2 = 7.21 and pK a3 = 12.32.
A solution is made by dissolving 0.1283 g of the acid form of the buffer TRIS (molecular mass = 157.60 g/mol) along with 0.1975 g of the basic form of TRIS (molecular mass = 121.136 g/mol). The pK a of TRIS is 8.08. A very small amount of potassium dihydrogen phosphate is added (not enough to cause any change in the pH). What is the fractional amount of the potassium dihydrogen phosphate that is in the PO 4 3- form? Phosphoric acid is a triprotic acid with pK a1 = 2.16, pK a2 = 7.21 and pK a3 = 12.32.
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 57P
Related questions
Question
A solution is made by dissolving 0.1283 g of the acid form of the buffer TRIS (molecular mass = 157.60 g/mol) along with 0.1975 g of the basic form of TRIS (molecular mass = 121.136 g/mol). The pK a of TRIS is 8.08. A very small amount of potassium dihydrogen phosphate is added (not enough to cause any change in the pH). What is the fractional amount of the potassium dihydrogen phosphate that is in the PO 4 3- form? Phosphoric acid is a triprotic acid with pK a1 = 2.16, pK a2 = 7.21 and pK a3 = 12.32.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
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.Recommended textbooks for you
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
