Homework Help is Here – Start Your Trial Now!
Science
Biochemistry
At which pH value does the amino group of amino acid have the best buffering capacity? 9.00 9.69 1.53 6.01 3.00 10.5 E. What is the pI (isoelectric point)? pI=

At which pH value does the amino group of amino acid have the best buffering capacity? 9.00 9.69 1.53 6.01 3.00 10.5 E. What is the pI (isoelectric point)? pI=

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

This is all part of one question. It goes together. (I wrote D and E that were cut off from the picture.) Please help me solve this since it all follows a line.

D. At which pH value does the amino group of amino acid have the best buffering capacity?
9.00
9.69
1.53
6.01
3.00
10.5

E. What is the pI (isoelectric point)?
pI=

The graph represents the titration of an amino acid with NaOH solution. A. At what pH are about 1/2 of the carboxyl groups ionized? pH = 6.015 Incorrect B. Where does the amino acid have a net charge of -1? 12 11 10 9 8 7 6. 5 4 3 دیا N 1 0 T I I pl = 6.01 PK₁ = 2.34 0.5 1.0 pK₂ = 9.69 1.5 OH-(equivalents) 2.0
Transcribed Image Text:The graph represents the titration of an amino acid with NaOH solution. A. At what pH are about 1/2 of the carboxyl groups ionized? pH = 6.015 Incorrect B. Where does the amino acid have a net charge of -1? 12 11 10 9 8 7 6. 5 4 3 دیا N 1 0 T I I pl = 6.01 PK₁ = 2.34 0.5 1.0 pK₂ = 9.69 1.5 OH-(equivalents) 2.0
B. Where does the amino acid have a net charge of -1? above pH 9.69 at pH = 9.69 at pH = 6.01 at pH = 2.34 below pH 2.34 C. At what point has enough base been added to react with 1/2 of the NH3 groups? 1/2 of NH3 reacted = 7.85 Incorrect when 1/2 of NH has reacted, the pH = 7.85 Incorrect D. At which pH value does the amino group of amino acid have the best buffering capacity? equivalents OH
Transcribed Image Text:B. Where does the amino acid have a net charge of -1? above pH 9.69 at pH = 9.69 at pH = 6.01 at pH = 2.34 below pH 2.34 C. At what point has enough base been added to react with 1/2 of the NH3 groups? 1/2 of NH3 reacted = 7.85 Incorrect when 1/2 of NH has reacted, the pH = 7.85 Incorrect D. At which pH value does the amino group of amino acid have the best buffering capacity? equivalents OH
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 7 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781319114671
Author:
Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:
W. H. Freeman
Lehninger Principles of Biochemistry
Lehninger Principles of Biochemistry
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman
Fundamentals of Biochemistry: Life at the Molecul…
Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305961135
Author:
Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:
Cengage Learning
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning
Fundamentals of General, Organic, and Biological …
Fundamentals of General, Organic, and Biological …
Biochemistry
ISBN:
9780134015187
Author:
John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:
PEARSON
SEE MORE TEXTBOOKS