SI EXAM 1
Name the following compound.
Cl
Poyiadji
Name the following compound.
Cl
For CO
2
…
-Draw the molecular orbital diagram for carbon in the most stable state (draw the shapes of the orbitals in place for the electrons on the MO diagram)
-Draw the molecular orbital diagram for carbon as it bonded to the 2 oxygens (draw the shapes of the orbitals in place for the electrons on the MO diagram)
-Show the molecular orbitals as they are bonded to CO
2 for carbon (not the shapes…the circular orbitals and include the electrons and show which orbitals form bonds form which bonds or if they are just lone pairs)
Give the electron configuration of Galuim (Ga, Z=22)
Which alkane has a higher boiling pt?
Which alkane has a higher melting pt?
What are the intermolecular forces that these compounds have?
NH
3,
H
2,
H
2
CCl
2,
HCF
3
Which has a higher ionization energy?
N or O………..F or Ne………….Cl or F
1

Which has a higher electron affinity?
F or Cl
N or O
Label the hybridization of each atom.
O
O
H N
+
H H
What types of acids/bases are these considered? Lewis, Brownsted Lowry, Arhenius
HI or HBr or HCl or HClO
4
or HNO
3
or H
2
SO
4 or NH
2
CH
3
OH or CH
3
(CH
2
)
5
NH
2

-
or OH
-
in water
BeF
2 or BCl
3 or AlBr
3 or NH
3 an atom with a lone pair of electrons


Give the product(s) and label the type of acids and bases in the reaction.
+ S
F Be F
Give the product(s) and label the type of acids and bases in the reaction. Show which direction the reaction will proceed.
N
–
H H
+
I
Which has a more a stable conjugate base and why?
Cl Cl
O
H O
H
O
O
Number the following in order of increasing ka.
H
S H N H
O H
P
H
H
N N
Which has a higher pka value?
O
F
H
O
N
F
O
O
H
N
2

Number the following in order of increasing acidity.
H H H H
O
O O O
Put these in order of increasing acidity?
P
H
H
H
S
H
H
F
H
Give the product(s) and label the type of acids and bases in the reaction. Show which direction the reaction will proceed.
H
H O
– + H
N
+
H
H
Give the product(s) and label the type of acids and bases in the reaction. Show which direction the reaction will proceed.
O
H
+
N
Show which direction the reaction will proceed.
H H
H
H
O
+
S
H
+
H H
H
H
O
H
H
H
O +
O
H
H
+
–
S H
H
O
+
H
H
+
O
–
H
H
H
+
+
H
O
–
H
N
+
N
H
Cicle the molecules that do not have a dipole moment.
H
H
O
H
O
O
H F
H
H
O
H H
O
S
3

Draw the contributing structures and the resonance hybrid of these molecules. For the first, second and fifth molecule down show which contributing resonance structure is the best.
O O
F
F
O
F
C
–
N
+
H H O
O
O
O
–
S O
O
–
O
N
H
O
N
C
+
+
C
–
C
Which bond has a higher dipole moment in this molecule the triple CN bond or the double CN bond. Does this molecule have a dipole moment?
N
H
N
N
H
H
N
N
N
H
4

Which has a higher dipole moment?
F F
F
F
What type of isomers are these two molecules?
O H
O H
What type of isomer are these two molecules?
Draw the Lewis structure of CH
3
CONH
2
Label the formal charge on all non hydrogen atoms of this molecule.
H
H
N O
H
H
P
H H
Which of these are nucleophiles and which of these are electrophiles?
HCl , NH
3,
H
3
O
+
, , OH
-
, BF
3
What are the bond angles, molecular shape, and electron pair arrangements of these molecules?
Cl
Cl H
P
H
Cl S
H
Al
H
Cl Cl Cl
H Cl
Number the following in the increasing oxidation state of the carbon (
12
C).
H
O
O
O O
H
12 C
12 C
12
C
12 C
H
H O
H
O H O H
H
H
H
12 C
5

Which carbon isotope in this molecule has the highest oxidation state?
O
10
C
14
C
13
C
11
C
12
C
O
H
H
H
H
H H
Label the carbons in this molecule as primary secondary of tertiary.
Draw the sawhorse diagram of CF
3
CH
3.
Draw the most stable newman projection for 2-diisopropyl pentane looking down the C-2 and C-3 bond.
Draw the most stable newman projection for this molecule looking down the C-3 and C-4 bond. Rotate this newman projection to give the eclipse, gauche, anti confirmation. After your through show which confirmations are staggered.
H
H
H
H
Draw the most stable newman projection for this molecule and draw the most stable chair confirmation labeling the axial and equatorial bonds.
Cl
Cl
6