Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN: 9781305960060
Author: Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher: Cengage Learning
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Question
Chapter 15, Problem 15.18E
Interpretation Introduction
Interpretation:
The structural formula for the carboxylate ion of propanoic acid is to be drawn.
Concept introduction:
The characteristic
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3. Refer to the data below to answer the following questions:
Isoelectric point
Amino Acid
Arginine
10.76
Glutamic Acid
3.22
Tryptophan
5.89
A. Define isoelectric point.
B. The most basic amino acid is
C. The most acidic amino acid is
sidizo zo
3. A gas mixture contains 50 mol% H2 and 50 mol% He.
1.00-L samples of this gas mixture are mixed with
variable volumes of O2 (at 0 °C and 1 atm). A spark is
introduced to allow the mixture to undergo complete
combustion. The final volume is measured at 0 °C and 1
atm. Which graph best depicts the final volume as a
function of the volume of added O2?
(A)
2.00
1.75
Final Volume, L
1.50
1.25
1.00
0.75
0.50
0.25
0.00
0.00
0.25
0.50
2.00
(B)
1.75
1.50
Final Volume, L
1.25
1.00
0.75
0.50-
0.25
0.00
0.75
1.00
0.00
0.25
Volume O₂ added, L
2
0.50
0.75
1.00
Volume O₂ added, L
2
2.00
2.00
(C)
(D)
1.75
1.75
1.50
1.50
Final Volume, L
1.25
1.00
0.75
0.50
Final Volume, L
1.25
1.00
0.75
0.50
0.25
0.25
0.00
0.00
0.00
0.25
0.50
0.75
1.00
0.00
0.25
Volume O₂ added, L
0.50
0.75
1.00
Volume O₂ added, L
2
Leucine is an essential amino acid with the systematic name 2-amino-3-methylpentanoic acid. It has pai
2.36 and pKa2 = 9.60.
H2N-C(R)H-COOH and R is -CH2-CH(CH3)2
A. Draw the condensed structure for leucine, and label all chirality centers with an asterisk.
B. How many possible stereoisomers of leucine are there?
C. Draw a Fischer projection of L-leucine and label the chirality center(s) as R or S.
D. What is the p/ of leucine?
E. Draw the structure of the predominant form of leucine at 10.00.
F.
Draw the structure of the predominant form of leucine at pH = 1.50.
G. Leucine is described as an essential amino acid. What does this mean?
H. Show the alkyl halide you would use to prepare leucine by the amidomalonate method.
=
Chapter 15 Solutions
Chemistry for Today: General, Organic, and Biochemistry
Ch. 15 - Prob. 15.1ECh. 15 - Prob. 15.2ECh. 15 - Prob. 15.3ECh. 15 - What carboxylic acid is present in sour milk and...Ch. 15 - Write the correct IUPAC name for each of the...Ch. 15 - Write the correct IUPAC name for each of the...Ch. 15 - Prob. 15.7ECh. 15 - Prob. 15.8ECh. 15 - Prob. 15.9ECh. 15 - Prob. 15.10E
Ch. 15 - Prob. 15.11ECh. 15 - Prob. 15.12ECh. 15 - Prob. 15.13ECh. 15 - Caproic acid, a six-carbon acid, has a solubility...Ch. 15 - Why are acetic acid, sodium acetate, and sodium...Ch. 15 - List the following compounds in order of...Ch. 15 - Prob. 15.17ECh. 15 - Prob. 15.18ECh. 15 - Prob. 15.19ECh. 15 - Prob. 15.20ECh. 15 - Write an equation to illustrate the equilibrium...Ch. 15 - Prob. 15.22ECh. 15 - Complete each of the following reactions: a. b.Ch. 15 - Prob. 15.24ECh. 15 - Write a balanced reaction for the reaction of...Ch. 15 - Prob. 15.26ECh. 15 - Give the IUPAC name for each of the following: a....Ch. 15 - Prob. 15.28ECh. 15 - Prob. 15.29ECh. 15 - Prob. 15.30ECh. 15 - Prob. 15.31ECh. 15 - Give the name of a carboxylic acid or carboxylate...Ch. 15 - Prob. 15.33ECh. 15 - Prob. 15.34ECh. 15 - Complete the following reactions: a. b. c.Ch. 15 - Prob. 15.36ECh. 15 - Using the alcohol CH3CH2OH, show three different...Ch. 15 - Prob. 15.38ECh. 15 - Prob. 15.39ECh. 15 - Prob. 15.40ECh. 15 - Prob. 15.41ECh. 15 - Prob. 15.42ECh. 15 - Prob. 15.43ECh. 15 - Prob. 15.44ECh. 15 - Give the IUPAC name for each of the following: a....Ch. 15 - Prob. 15.46ECh. 15 - Prob. 15.47ECh. 15 - Prob. 15.48ECh. 15 - Prob. 15.49ECh. 15 - Prob. 15.50ECh. 15 - Prob. 15.51ECh. 15 - Prob. 15.52ECh. 15 - Complete the following reactions: a. b.Ch. 15 - Prob. 15.54ECh. 15 - Prob. 15.55ECh. 15 - Dihydroxyacetone reacts with phosphoric acid to...Ch. 15 - Prob. 15.57ECh. 15 - Prob. 15.58ECh. 15 - Prob. 15.59ECh. 15 - Prob. 15.60ECh. 15 - How many mL of a 0.100M NaOH solution would be...Ch. 15 - Prob. 15.62ECh. 15 - Prob. 15.63ECh. 15 - Prob. 15.64ECh. 15 - Prob. 15.65ECh. 15 - Prob. 15.66ECh. 15 - Prob. 15.67ECh. 15 - Why is it safe for us to consume foods like...Ch. 15 - Prob. 15.69ECh. 15 - Prob. 15.70ECh. 15 - Prob. 15.71ECh. 15 - Prob. 15.72ECh. 15 - Identify the functional group designated by each...Ch. 15 - Prob. 15.74ECh. 15 - Fats belong to the class of organic compounds...
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