HOMEWORK PROBLEMS FOR PROBLEM SESSIONS
GENERAL CHEMISTRY I (Brown, Lemay, Bursten, Murphy, 11th edition)
Prof. Michael A. Hauser
revised 10/01/08
Assigned homework problems are listed below. Homework problems are located at the
end of each chapter. Note that each Chapter 1 problem starts with “1”, Chapter 2 starts
with “2”, etc. These prefixes are not listed below. Note that some homework assignments
include “Additional Exercises” written by your instructor, and these must be answered
also. These will appear in the homework list as AE (for "Additional Exercise") and these
problems can be found at the end of the homework list.
These assigned problems represent only a minimum sampling of problems you should be
able to solve. (You are certainly encouraged to work more of them.) You should work
these assigned problems in the order listed in this document so that it reflects the topic
order from lecture. The day prior to your scheduled Problem Session each week, you will
have a general idea of which homework problems to have completed based on what
topics were completed in lecture. The best approach is to work these problems in the
order given until you reach a problem that we clearly have not discussed yet. Stop there.
It is certainly OK to continue deeper into the list (the text reading will help), but further
problems will be covered at the following week's Problem Session.
The answers to the assigned problems will be discussed in Problem Session. You will not
turn in your work, but your instructor will explain the grading procedure for Problem
Sessions. IT IS EXTREMELY BENEFICIAL FOR YOU TO WORK ALL OF THESE
PROBLEMS ON PAPER AND HAVE THEM READY FOR PROBLEM SESSION!
Most of the problems in your text are written in pairs, and the answers to the odd
numbered (red) questions appear in the Appendix. Worked-out answers that show all
steps appear in the "Solutions to Red Exercises" manual available for purchase at the
bookstore. A copy of this manual will also be on reserve in the library for "in-library" use
only. If you choose to solve the even-numbered problems to check your mastery of the
material, your instructor has a copy of answers to all of the problems in the text – you can
check your answers with him.
continued on other side
CHAPTER 1
23 a
51
19
33 a b
59
25 a b c
45 c
61
35
46 c
63
37 a b c
49 a
69
39
57
71 c
27 c
71 omit 3rd part of quest
CHAPTER 6
8
77
9
AE #1 (see last page of
this handout)
CHAPTER 4
11
5
17
43 a b c d f
7
21 a b
45 f
19
25 a
CHAPTER 2
21
31
79 b c d
24
AE #4
21
39
49
27
43
90
49
45
51
31
49 a b c d
53
53 (omit "a")
51 a b
AE #5
63
AE #2
55 any orientation is OK
65
AE #3
57 a
67 a b c d f
61
63
98
67 b
67 (skip e)
71
69 a
69 a c e
73 a b c
73 a
71
104 c e
81 a b
73
CHAPTER 3
CHAPTER 5
AE #6
11 d e f
41 a b
13 b c
43 a b
19
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next chapter starts on
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CHAPTER 7
2
11
51 a
79
23
CHAPTER 9
AE #12
25
19 give mol geo only
83 a b
27
21 give mol geo only
note: (e) is not N3-
CHAPTER 11
30
29
19
31
76
21
35 a,b
31
23
37
35
31 a b
41
81
11
43 a
7
33
45
41 a b
AE #13
47
47 (not b)
47
49
AE # 7
AE #14
55 a b
79
6
AE #8
AE #15 and 16
CHAPTER 8
AE #9
CHAPTER 13
9
65
21
17
67
25
19
69
27
35
CHAPTER 10
29 b c
37
19 a b
31
79 a b
39 a
37 a
39
41 a
9
45 a b c e
AE #10
41 a
49 a b c (do not assign
OX #)
45
59
49
65 a b
88 a b d
55
67
61 a b c e
AE #11
99 a
continued in next column
continued in next column
73
29
65
3
15
(see in next side)
ADDITIONAL
#6 How many unpaired electrons are in the
ground state of each of the following?
EXERCISES
a) the cobalt atom
b) the tin atom
c) the bromide ion
#1
Calculate the result for the
following "mixed operation":
19.667 – (5.4 X 0.916)
#7
For the ion NO2 +1
a) Draw three resonance forms (use
nitrogen as central atom).
b) Predict the geometry.
c) Predict the hybridization of the central
atom.
#2 Examine the following reactions
and identify whether or not a REDOX
(oxidation-reduction) reaction has
occurred.
If REDOX has occurred, report the
following:
- the atom oxidized
- the atom reduced
- the oxidizing agent
- the reducing agent
#8
If a carbon atom is “sp” hybridized,
what is the maximum number of π bonds
that this atom could be involved in?
#9
For the following structure .....
H
A) SiCL4 + 2 Mg  2 MgCL2 + Si
H
B) SiCL4 + 2 H2 O  4 HCL + SiO2
#3 Use the Activity Series (Table
4.5) to predict the outcome (if any) of
each of the following reactions:
a) Cr (s) + 3 AgNO3 
b) Fe (s) + Mn+2 
3
2
0
1
4
2
1
1
H
H
C
H
C
C
H
H
#10
An ideal gas originally at 0.85 atm
and 66 °C was allowed to expand until its
final conditions were a volume of 94 mL,
pressure of 0.60 atm, and temperature of
45 °C. What was the initial volume of the
gas?
#5 Determine whether the following
sets of quantum numbers are allowed
or not allowed. If a set is not allowed,
explain what is “wrong” with the
given values. If a set is allowed, list
the “#-letter” code for that orbital.
n
l
ml
ms
4
3
1
2
C
•How many atoms atoms are sp2
hybridized?
•How many pi (π) bonds between two
carbon atoms exist in this structure?
#4 What information does the square
of the wavefunction give?
a)
b)
c)
d)
C
#11
Based on the following balanced
equation, what volume of oxygen gas
would be expected from complete reaction
of 27.8 grams of KCLO3 at STP ?
-1/2
+1/2
+1/2
1
2 KCLO3 (s) ⇒ 2 KCL (s) + 3 O2 (g)
next problem appears on next page
4
H
#12
Compare the relative rate of
effusion of a molecule of oxygen and
a molecule of xenon. Which gas
travels faster? How much faster?
#13
Calculate the kJ of heat
required to convert 746 gram of water
at 100 °C to steam.
#14
Death Valley is the lowest
point in the United States (280 feet
below sea level). Would you expect
the atmospheric pressure in Death
Valley to be greater or less than the
atmospheric pressure in St. Louis?
EXPLAIN how the pressure in Death
Valley would affect the boiling point
of a liquid.
#15
Methyl alcohol (CH3OH) has
a much higher boiling point than
methane (CH4). Use intermolecular
forces to explain this large difference
in boiling point.
#16
Which would you expect to
have the higher boiling point, carbon
dioxide (CO2) or acetonitrile
(CH3CN)? The acetonitrile has the
basic backbone of C - C - N; you
should draw the Lewis Structure. Use
intermolecular forces to explain your
answer.
END OF
"ADDITIONAL EXERCISES"
5