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Chem 343 Exam I Practice Problems.pdf
Chem_343_Exam_I_Practice_Problems.pdf
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CHEM | 343 | Introductory Organic Chemistry | exam...
CHEM | 343 | Introductory Organic Chemistry | exam |Chem 343 Review Problems for Exam I: 1.) Nitrogen Hybridization: Identify the hybridization of the nitrogen and the orbital in which the lone pair resides. 2.) Identify how many types of carbon are present. N O N Nitrogen is ____ hybridized. Lone pair is located in a ____ orbital. Nitrogen is ____ hybridized. Lone pair is located in a ____ orbital. O 3.) Draw th
CHEM | 343 | Introductory Organic C...
CHEM | 343 | Introductory Organic Chemistry | exam |Chem 343 Review Problems for Exam I: 1.) Nitrogen Hybridization: Identify the hybridization of the nitrogen and the orbital in which the lone pair resides. 2.) Identify how many types of carbon are present. N O N Nitrogen is ____ hybridized. Lone pair is located in a ____ orbital. Nitrogen is ____ hybridized. Lone pair is located in a ____ orbital. O 3.) Draw th
Page 1
Chem 343 Review Problems for Exam I:
1.) Nitrogen Hybridization:
Identify the hybridization of the nitrogen
and the orbital in which the lone pair resides.
2.)
Identify how many types of carbon are present.
N
O
N
Nitrogen is ____ hybridized.
Lone pair is located in a ____ orbital.
Nitrogen is ____ hybridized.
Lone pair is located in a ____ orbital.
O
Page 2
3.)
Draw the Newman projection of three different staggered
conformations of the following alkane.
The projection should be
sighted along carbons 3 and 4.
Rank them in terms of stability.
The
most stable should be labelled as 1.
4.)
Draw 4 different resonance structures of the following compound.
O
N
Page 3
5.)
Compare the two sets of molecules.
Are they the same molecule
(A), not even isomers (B), constitutional isomers (C), or diastereomers
(D)?
6.)
Label the following alkenes as E or Z.
N
N
Cl
Page 4
7.)
Identify which compound is acting as an acid on each side of the
equilibrium by
writing “acid” and its pKa value
underneath it.
Then using the pKa table provided, determine the direction and extent
of the equilibrium by using one of these arrows.
(
)
H
2
N
H
3
N
HO
O
OH
HO
O
O
O
O
OH
O
SH
S
HCl
R
O
OH
R
O
H
H
R
N
R
R
H
OH
R
O
H
R
O
H
R
H
R
N
H
R
R
H
-5
0
5
10
15
20
25
35
45
Approximate pKa of Common Functional Groups
R
SH
N
R
R
H
H
N
RO
O
H
H
O
R
R=H or sp
3
C
O
H
H
H
N
H
O
HO
S
O
O
OH
R
S
O
O
OH
OH
Page 5
8.)
Circle the more acidic molecule.
Explain why it is more acidic.
O
OH
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