Chem 30A 2008 Midterm2 - Chemistry 30A UCLA Summer 2008...

Chemistry 30A
UCLA Summer 2008
Midterm Exam II
On my honor, I have neither given nor received any aid on this exam
Signature:
Name:
UCLA Student I. D. Number:
Question Points
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1 (21)
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2 (29)
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3 (14)
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4 (18)
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5 (18)
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6 Extra Credit (10)
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Total

Chemistry 30A, Summer 2008 Name:
Page 1
THEORY
1.
A. (4) Calculate the Double Bond Equivalents (DBE) (Degree of Unsaturation) for C
9
H
15
ClN
2
O
3
.
B. (6) Give the approximate numerical pKa for each molecule.
OH
O
OH
H
NH
3
+
N
H
C. (3) Define “meso compound” using words and a structure.
D. (8) Draw the Reaction Coordinate Diagram for the following reaction.
Clearly label and indicate positions for starting materials, intermediates, products, transition states,
Activation Energy (E
A
) and Heat of Reaction ( Δ H
o
).
Br
Br
Br
2

Chemistry 30A, Summer 2008 Name:
Page 2
THEORY and NOMENCLATURE
2. (29)
A. (4) Name the following compound using IUPAC rules including absolute stereochemistry.
Cl
Br
B. (4) Name the following compound using E/Z rules.