Introductory Chemistry
9th Edition
ISBN: 9781337399524
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 21, Problem 2ALQ
Interpretation Introduction
Interpretation:
Interpret the structure of gly-ala and ala-gly.
Concept Introduction:
Protein is a long chain of polypeptide in which numbers of amino acids are linked to each other to produce a structure known as protein.
Each amino acid consists of carboxyl end and amino group which are joined through peptide linkage to produce dipeptide, tripeptide and polypeptide according to number of amino acids linked to each other.
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Part II. Given two isomers: 2-methylpentane (A) and 2,2-dimethyl butane (B) answer the following:
(a) match structures of isomers given their mass spectra below (spectra A and spectra B)
(b) Draw the fragments given the following prominent peaks from
each spectrum:
Spectra A m/2 =43 and 1/2-57
spectra B m/2 = 43
(c) why is 1/2=57 peak in spectrum A more intense compared
to the same peak in spectrum B.
Relative abundance
Relative abundance
100
A
50
29
29
0
10
-0
-0
100
B
50
720
30
41
43
57
71
4-0
40
50
60 70
m/z
43
57
8-0
m/z = 86
M
90 100
71
m/z = 86
M
-O
0
10 20 30
40 50
60
70
80
-88
m/z
90
100
Part IV. C6H5 CH2CH2OH is an aromatic compound which was subjected to Electron Ionization - mass
spectrometry (El-MS) analysis. Prominent m/2 values: m/2 = 104 and m/2 = 9) was obtained.
Draw the structures of these fragments.
For each reaction shown below follow the curved arrows to complete each equationby showing the structure of the products. Identify the acid, the base, the conjugated acid andconjugated base. Consutl the pKa table and choose the direciton theequilibrium goes. However show the curved arrows. Please explain if possible.
Chapter 21 Solutions
Introductory Chemistry
Ch. 21.9 - Prob. 1CTCh. 21 - Differentiate among primary, secondary, and...Ch. 21 - Prob. 2ALQCh. 21 - Prob. 3ALQCh. 21 - Prob. 4ALQCh. 21 - Prob. 5ALQCh. 21 - Prob. 6ALQCh. 21 - Prob. 7ALQCh. 21 - Prob. 8ALQCh. 21 - Prob. 9ALQ
Ch. 21 - Prob. 10ALQCh. 21 - Prob. 11ALQCh. 21 - Prob. 1QAPCh. 21 - Prob. 2QAPCh. 21 - Prob. 3QAPCh. 21 - Prob. 4QAPCh. 21 - Prob. 5QAPCh. 21 - Prob. 6QAPCh. 21 - Prob. 7QAPCh. 21 - Prob. 8QAPCh. 21 - Prob. 9QAPCh. 21 - . How many unique amino acid sequences are...Ch. 21 - Prob. 11QAPCh. 21 - Prob. 12QAPCh. 21 - Prob. 13QAPCh. 21 - Prob. 14QAPCh. 21 - Prob. 15QAPCh. 21 - Prob. 16QAPCh. 21 - Prob. 17QAPCh. 21 - Prob. 18QAPCh. 21 - Prob. 19QAPCh. 21 - . What protein is responsible for the transport of...Ch. 21 - Prob. 21QAPCh. 21 - Prob. 22QAPCh. 21 - Prob. 23QAPCh. 21 - Prob. 24QAPCh. 21 - . How does the efficiency of an enzyme compare...Ch. 21 - Prob. 26QAPCh. 21 - Prob. 27QAPCh. 21 - . Describe the lock-and-key model for enzymes. Why...Ch. 21 - Prob. 29QAPCh. 21 - Prob. 30QAPCh. 21 - Prob. 31QAPCh. 21 - Prob. 32QAPCh. 21 - Prob. 33QAPCh. 21 - Prob. 34QAPCh. 21 - Prob. 35QAPCh. 21 - Prob. 36QAPCh. 21 - Prob. 37QAPCh. 21 - Prob. 38QAPCh. 21 - Prob. 39QAPCh. 21 - Prob. 40QAPCh. 21 - Prob. 41QAPCh. 21 - Prob. 42QAPCh. 21 - Prob. 43QAPCh. 21 - Prob. 44QAPCh. 21 - Prob. 45QAPCh. 21 - Prob. 46QAPCh. 21 - Prob. 47QAPCh. 21 - Prob. 48QAPCh. 21 - Prob. 49QAPCh. 21 - Prob. 50QAPCh. 21 - . What is a steroid? What basic ring structure 15...Ch. 21 - Prob. 52QAPCh. 21 - Prob. 53QAPCh. 21 - Prob. 54QAPCh. 21 - Prob. 55APCh. 21 - Prob. 56APCh. 21 - Prob. 57APCh. 21 - Prob. 58APCh. 21 - Prob. 59APCh. 21 - Prob. 60APCh. 21 - Prob. 61APCh. 21 - Prob. 62APCh. 21 - Prob. 63APCh. 21 - Prob. 64APCh. 21 - Prob. 65APCh. 21 - Prob. 66APCh. 21 - Prob. 67APCh. 21 - Prob. 68APCh. 21 - Prob. 69APCh. 21 - Prob. 70APCh. 21 - Prob. 71APCh. 21 - Prob. 72APCh. 21 - Prob. 73APCh. 21 - Prob. 74APCh. 21 - Prob. 75APCh. 21 - Prob. 76APCh. 21 - Prob. 77APCh. 21 - Prob. 78APCh. 21 - Prob. 79APCh. 21 - Prob. 80APCh. 21 - Prob. 81APCh. 21 - Prob. 82APCh. 21 - Prob. 83APCh. 21 - Prob. 84APCh. 21 - Prob. 85APCh. 21 - Prob. 86APCh. 21 - Prob. 87APCh. 21 - Prob. 88APCh. 21 - Prob. 89APCh. 21 - Prob. 90APCh. 21 - Prob. 91APCh. 21 - Prob. 92APCh. 21 - Prob. 93APCh. 21 - Prob. 94APCh. 21 - Prob. 95APCh. 21 - Prob. 96APCh. 21 - . How many possible primary structures exist for a...Ch. 21 - Prob. 98APCh. 21 - Prob. 99APCh. 21 - Prob. 100APCh. 21 - Prob. 101APCh. 21 - Prob. 102APCh. 21 - Prob. 103APCh. 21 - Prob. 104APCh. 21 - Prob. 105APCh. 21 - Prob. 106AP
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