I. Short Answer (24 pts total) 1. For each molecule or ion circle the appropriate letter to indicate if the structure is Aromatic (A), Anti-Aromatic (AA) or Neither (N) aromatic or anti-aromatic. (1 pt each, 4 pts total) A AAN (circle one) A AAN (circle one) A AAN (circle one) A AAN (circle one) 2. Rank the following molecules from #1 (fastest) to #3 (slowest) in their reaction with Cl₂ / FeCl3. (6 pts) Br NCH3 H II. Conside 1-chlo 1. Dr 2. Is 3. Explain why pyrrole is a much WEAKER base than pyridine (pK,'s for their conjugate acids shown to right) (6 pts) H... HOH Pyrrole Pyridine pKa = -4 pKa = +5 4. Explain the differences in pK, (vs benzoic acid) of these substituted benzoic acids based on fundamental chemical principles (not just what pK, means). (8 pts) OH .OH OH PK, 4.20 OCH3 4.47 3.70 3.
I. Short Answer (24 pts total) 1. For each molecule or ion circle the appropriate letter to indicate if the structure is Aromatic (A), Anti-Aromatic (AA) or Neither (N) aromatic or anti-aromatic. (1 pt each, 4 pts total) A AAN (circle one) A AAN (circle one) A AAN (circle one) A AAN (circle one) 2. Rank the following molecules from #1 (fastest) to #3 (slowest) in their reaction with Cl₂ / FeCl3. (6 pts) Br NCH3 H II. Conside 1-chlo 1. Dr 2. Is 3. Explain why pyrrole is a much WEAKER base than pyridine (pK,'s for their conjugate acids shown to right) (6 pts) H... HOH Pyrrole Pyridine pKa = -4 pKa = +5 4. Explain the differences in pK, (vs benzoic acid) of these substituted benzoic acids based on fundamental chemical principles (not just what pK, means). (8 pts) OH .OH OH PK, 4.20 OCH3 4.47 3.70 3.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:I. Short Answer (24 pts total)
1. For each molecule or ion circle the appropriate letter to indicate if the structure is Aromatic (A),
Anti-Aromatic (AA) or Neither (N) aromatic or anti-aromatic. (1 pt each, 4 pts total)
A AAN
(circle one)
A AAN
(circle one)
A AAN
(circle one)
A AAN
(circle one)
2. Rank the following molecules from #1 (fastest) to #3 (slowest) in their reaction with Cl₂ / FeCl3. (6 pts)
Br
NCH3
H
II. Conside
1-chlo
1. Dr
2. Is
3. Explain why pyrrole is a much WEAKER base than pyridine (pK,'s for their conjugate acids shown to right) (6 pts)
H...
HOH
Pyrrole Pyridine
pKa = -4
pKa = +5
4. Explain the differences in pK, (vs benzoic acid) of these substituted benzoic acids based on fundamental chemical
principles (not just what pK, means). (8 pts)
OH
.OH
OH
PK,
4.20
OCH3
4.47
3.70
3.
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