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 incorrect C. At what point has enough base been added to react with 1/2 of the NH; groups? 1/2 of NH reacted incorrect when 1/2 of NH; has reacted, the pH= coact equivalents OH

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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 NH; groups?
1/2 of NH; reacted
incorrect
when 1/2 of NH; has reacted, the pH=
Incorrect
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 NH; groups? 1/2 of NH; reacted incorrect when 1/2 of NH; has reacted, the pH= Incorrect equivalents OH
The graph represents the titration of an amino acid with
NaOH solution.
A. At what pH are about 1/2 of the amino groups ionized?
pH= 9.69
12
11-
10-
9
8.
7.
6-
5
4.
3
22
1-
0
pl6.01
PK, 234
0.5
PK, 9.69
10
13
OH (evalents)
20
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 amino groups ionized? pH= 9.69 12 11- 10- 9 8. 7. 6- 5 4. 3 22 1- 0 pl6.01 PK, 234 0.5 PK, 9.69 10 13 OH (evalents) 20
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