Score:
CHMB41H Tutorials_Worksheet 1B
Name: Shen wei Hu
Name:
Name:
Name:
1.
Student #:
Student #:
Student #:
Student #:
1006122278
Provide a complete Lewis and skeletal structure for the following molecule:
(H3C)2CHCH(NH3+)(CO2-)
ft
H
H
-
H
-
C
l
H
-
H
-
C
C
l
H
-
N
,
H
Attempt #2
Attempt #3
O
:
H
l
-
l
H
i
H
l
l
Attempt #1
C
-
①
-
c
-
j
"
H
-0
:
TUT #:
TUT #:
TUT #:
TUT #:
/15
# Valence
=
4
x
H
1
×
O
6
N
5
C
×
x
6
zy
7
7
2
12
I
5
-
48
2.
How many sigma and pi bonds are in a molecule of ethyl 2-cyanoacrylate (C6H7O2N)?
Attempt #1
Attempt #2
Attempt #3
15
Number of sigma bonds: ___
4
Number of pi bonds: ___
Number of sigma bonds: ___
Number of pi bonds: ___
H
-
H
H
'
I
C
-
C
'
'
H
H
H
C
-
-
H
11
-
O
-
c
-
C
-
CIN
H
O
Number of sigma bonds: ___
Number of pi bonds: ___
'
H
3.
For the molecule in 2), give the number of carbon atoms per hybridization.
Z
Number of sp3 hybridized carbons: ___
Attempt #1
3
Number of sp2 hybridized carbons: ___
I
Number of sp hybridized carbons: ___
Number of sp3 hybridized carbons: ___
Attempt #2
Number of sp2 hybridized carbons: ___
Number of sp hybridized carbons: ___
Number of sp3 hybridized carbons: ___
Attempt #3
Number of sp2 hybridized carbons: ___
Number of sp hybridized carbons: ___
t
up
'
2
sp3
3
spz
Y
vp2
5
up
Gop
2
-
C
H
H
H
-
C
'
'
H
H
-
H
11
I
-
C
-
O
-
c
H
O
-
C
-
CIN
4.
Give a complete Lewis structure for the molecule below and determine the hybridization and
geometries of the atoms in the red squares.
(
c
c
C
c
C
i
Attempt #1
Attempt #2
Attempt #3
5.
's
1: sp
2: gp3
,
,
tetrahedral
tetrahedral
H
,
bent
-
H
H
l
l
C
-
C
H
.
H
l l
-
C
l
l
H
H
'
s
O
-
,
C
-
C
l
l
H
H
-
it
1:
2:
1:
2:
C m le e he Le i
c e f he m lec le h
bel , addi g i b d , l e ai , a d H a
necessary. You can assume there are no formal charges on any of the atoms. Draw dipole moments
for any polar bonds within the structure.
:O
Attempt #1
Attempt #2
Attempt #3
:
#
H
-
C
-
it
it
c
-
c
f
f
,
H
H
H
.
-
.
cc
#
.
.
: