General, Organic, and Biological Chemistry - 4th edition
4th Edition
ISBN: 9781259883989
Author: by Janice Smith
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 21, Problem 28P
Which of the following Fischer projections represent naturally occurring amino acids? Name each amino acid and designate it as a D or L isomer.
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Question: I've done both of the graphs and generated an equation from excel, I just need help
explaining A-B. Below is just the information I used to get the graphs obtain the graph please help.
Prepare two graphs, the first with the percent transmission on the vertical axis and concentration on
the horizontal axis and the second with absorption on the vertical axis and concentration on the
horizontal axis.
Solution #
Unknown
Concentration (mol/L)
Transmittance
Absorption
9.88x101
635
0.17
1.98x101
47%
0.33
2.95x101
31%
0.51
3.95x10
21%
0.68
4.94x10
14%
24%
0.85
0.62
A.) Give an equation that relates either the % transmission or the absorption to the concentration. Explain how you
arrived at your equation.
B.) What is the relationship between the percent transmission and the absorption?
C.) Determine the concentration of the ironlll) salicylate in the unknown directly from the graph and from the best fit
trend-line (least squares analysis) of the graph that yielded a straight…
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Chapter 21 Solutions
General, Organic, and Biological Chemistry - 4th edition
Ch. 21.2 - In addition to the amino and carboxyl groups, what...Ch. 21.2 - Draw both enantiomers of each amino acid in...Ch. 21.2 - Which of the following amino acids is naturally...Ch. 21.3 - Draw the structure of the amino acid valine at...Ch. 21.3 - Identify the amino acid shown with all uncharged...Ch. 21.4 - Identify the N-terminal and C-terminal amino acid...Ch. 21.4 - Prob. 21.4PCh. 21.4 - Prob. 21.4PPCh. 21.4 - Prob. 21.5PCh. 21.4 - Prob. 21.5PP
Ch. 21.4 - Prob. 21.6PPCh. 21.5 - Prob. 21.6PCh. 21.6 - Prob. 21.7PCh. 21.6 - Prob. 21.8PCh. 21.6 - Prob. 21.9PCh. 21.7 - Why is hemoglobin more water soluble than ...Ch. 21.8 - Prob. 21.7PPCh. 21.8 - Prob. 21.11PCh. 21.9 - Prob. 21.8PPCh. 21.9 - Prob. 21.12PCh. 21.9 - Prob. 21.9PPCh. 21.9 - Prob. 21.13PCh. 21.10 - Prob. 21.14PCh. 21.10 - Prob. 21.15PCh. 21.10 - Prob. 21.16PCh. 21.10 - Prob. 21.17PCh. 21.10 - The nerve gas sarin acts as a poison by covalently...Ch. 21.10 - Prob. 21.19PCh. 21.10 - Explain why the proteins involved in blood...Ch. 21 - The amino acid alanine is a solid at room...Ch. 21 - Why is phenylalanine water soluble but...Ch. 21 - Draw the structure of a naturally occurring amino...Ch. 21 - Draw the structure of a naturally occurring amino...Ch. 21 - For each amino acid: [1] draw the L enantiomer in...Ch. 21 - For each amino acid: [1] draw the L enantiomer in...Ch. 21 - Draw both enantiomers of each amino acid and label...Ch. 21 - Which of the following Fischer projections...Ch. 21 - For each amino acid: [1] give the name; [2] give...Ch. 21 - For each amino acid: [1] give the name; [2] give...Ch. 21 - (a) Identify the amino acid shown with all...Ch. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Draw the structure of the neutral, positively...Ch. 21 - Locate the peptide bond in the dipeptide shown in...Ch. 21 - Label the N-terminal and C-terminal amino acids in...Ch. 21 - Melittin, the principal toxin of bee venom,...Ch. 21 - Cobratoxin is a neurotoxin found in the venom of...Ch. 21 - (a) Draw the structure of the two possible...Ch. 21 - (a) Draw the structure of the two possible...Ch. 21 - For each tripeptide: [1] draw the structure of the...Ch. 21 - For each tripeptide: [1] draw the structure of the...Ch. 21 - Prob. 43PCh. 21 - For each tripeptide: [1] identify the amino acids...Ch. 21 - What amino acids are formed by hydrolysis of the...Ch. 21 - Prob. 46PCh. 21 - Prob. 47PCh. 21 - Draw the structures of the amino acids formed when...Ch. 21 - Prob. 49PCh. 21 - Prob. 50PCh. 21 - Prob. 51PCh. 21 - Trypsin is a digestive enzyme that hydrolyzes...Ch. 21 - What type of intermolecular forces exist between...Ch. 21 - What type of interaction occur at each of the...Ch. 21 - Which peptide in each pair contains amino acids...Ch. 21 - Decide if the side chains of the amino acid...Ch. 21 - Which type of protein structure is indicated in...Ch. 21 - Label each of the following diagrams as...Ch. 21 - Prob. 59PCh. 21 - Prob. 60PCh. 21 - Prob. 61PCh. 21 - Prob. 62PCh. 21 - Compare - keratin and hemoglobin with regard to...Ch. 21 - Compare collagen and myoglobin with regard to each...Ch. 21 - Prob. 65PCh. 21 - Prob. 66PCh. 21 - Describe the function or biological activity of...Ch. 21 - Describe the function or biological activity of...Ch. 21 - Prob. 69PCh. 21 - Prob. 70PCh. 21 - What class of enzyme catalyzes each of the...Ch. 21 - What class of enzyme catalyzes each of the...Ch. 21 - Prob. 73PCh. 21 - Prob. 74PCh. 21 - Prob. 75PCh. 21 - What kind of reaction is catalyzed by each of the...Ch. 21 - Prob. 77PCh. 21 - How will each of the following changes affect the...Ch. 21 - Prob. 79PCh. 21 - Prob. 80PCh. 21 - Prob. 81PCh. 21 - Prob. 82PCh. 21 - Prob. 83PCh. 21 - Prob. 84PCh. 21 - Prob. 85PCh. 21 - Prob. 86PCh. 21 - Why must vegetarian diets be carefully balanced?Ch. 21 - Prob. 88PCh. 21 - Sometimes an incision is cauterized (burned) to...Ch. 21 - Why is insulin administered by injection instead...Ch. 21 - Prob. 91PCh. 21 - The silk produced by a silkworm is a protein with...Ch. 21 - Explain the difference in the mechanism of action...Ch. 21 - Prob. 94PCh. 21 - Prob. 95CPCh. 21 - Suggest a reason for the following observation....
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