The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown. COO™ COO™ H₂N-CH H₂N-CH CH H CH N bbbb 6.0 CH H N COOH H₂N-CH CH₂ H -N CH lonizable -COOH group 1.8 COO -HisH+ -His CH -NH COO™ H₂N-CH 9.2 CH, H H N -NH₂ CH A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution?

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...
icon
Related questions
Question
The amino acid histidine has ionizable groups with pKą values of 1.8, 6.0, and 9.2, as shown.
H₂N-CH
T
COOH
pH
CH₂ H
lonizable -COOH
group
=
CH
COO-
H₂N-CH
1.8
pk₁
CH2
-COO-
H
-N
CH
-HisH+
COO-
+
H₂N-CH
6.0
pk₂
CH2
-His
CH
-NH
COO-
H₂N-CH
9.2
pk3
CH2
-N
-NH₂
A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is
the pH of the resulting solution?
CH
Transcribed Image Text:The amino acid histidine has ionizable groups with pKą values of 1.8, 6.0, and 9.2, as shown. H₂N-CH T COOH pH CH₂ H lonizable -COOH group = CH COO- H₂N-CH 1.8 pk₁ CH2 -COO- H -N CH -HisH+ COO- + H₂N-CH 6.0 pk₂ CH2 -His CH -NH COO- H₂N-CH 9.2 pk3 CH2 -N -NH₂ A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution? CH
Expert Solution
steps

Step by step

Solved in 4 steps with 35 images

Blurred answer
Knowledge Booster
Spectroanalytical Methods
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY