Chemistry 2000 Spring 2006 Test 1 Solutions
Marginal notes indicate problems assigned during the term which draw on similar
themes.
1.
(a) [S2 O2 ] doubles from experiment 1 to experiment 2 while [I ] is held Chapter 15 #11
8
constant, causing the rate to
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Chemistry 2000, Fall 96, Test 1 Solutions
1. From the last two lines of the table, we see that increasing [B] has no effect on the rate. Therefore,
the reaction is zero-order with respect to B so we can ignore thi
Chemistry 2000 Spring 2001 Section B Test 1 Solutions
(a) We rst compare experiments 1 and 2. At constant O2 , the concentration of NO is
doubled, resulting in a (roughly) fourfold increase in the rate. Thus, the order with
respect to [NO] is 2. Experimen
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Chemistry 2000, Section A
Spring 1996 Test 1 Solutions
1. Using the first two lines of the table, we see that the rate goes up by a factor of 5 when [A] goes
up by a factor of 5. Using the last two lines, we see t
Chemistry 2000 Spring 2006 Test 1
Name:
Student number:
Time: 50 minutes
Aids allowed: Calculator
Instructions: Answer all questions in the spaces provided. You can use the backs of pages
for scratch work or for extra answer space. If you do need to conti
Next: Useful information Up: Back to the Chemistry 2000 test index
Chemistry 2000, Section A
Spring 1996 Test 1
All questions are equally weighted. Bonus mark policy: Bonuses are applied to this test and to the last
assignment, to a cumulative maximum of
Chemistry 2000 Spring 2001 Section B Test 1
Name:
Student number:
Aids allowed: Calculator. In particular, periodic tables and other written or printed materials are
excluded.
Instructions: Answer all questions in the spaces provided. Use the backs of the
Next: Useful data Up: Back to the Chemistry 2000 test index
Chemistry 2000, Fall 96, Test 1
1. Suppose that a chemist measures the initial rate of disappearance of a reactant A as a function of
concentration for the reaction
:
What is the experimental rat
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Solutions to the Practice Problem on
Electrochemistry
1. (The steps are numbered sequentially so the numbers don't correspond directly to those from the
procedure taught in class.)
1.
2.
3.
2. The half-react
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Chemistry 2000 Practice Problems on
Electrochemistry
Some of these problems may require data from the textbook or other sources for their solution.
1. Dissolved carbon dioxide reacts with calcium metal in a
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Chemistry 2000, Fall 1996, Thermodynamics
Practice Problems
1. A 10kg piece of wood (specific heat capacity
water (specific heat capacity
wood and water?
2. Oxygen boils at
) at
) at
is thrown into 100kg of
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Chemistry 2000, Fall 1996, Thermodynamics
Practice Problem Solutions
1. This is a heat balance problem. Since there is no indication to the contrary, we must assume that
no heat is either gained or lost by t
Chemistry 2000: MO and VB descriptions of
bonding
Marc R. Roussel
MO descriptions of bonding
To describe the bonding in a molecule using MO theory, proceed
as follows:
Look at the valence AOs and, if available, at the AO energies.
Separate the AOs into si
Chemistry 2000 Spring 2002 Midterm Examination
Name:
Student number:
Aids allowed: Calculator. No printed materials (e.g. periodic tables, calculator manuals) are allowed.
Formulas and data are given on page 7.
Instructions: Answer all questions in the sp
Chemistry 2000 Spring 2002 Midterm Examination
Solutions
(a) The concentrations in experiments 1 and 2 are in a 3:1 ratio, as are the rates. This is
therefore a rst-order reaction with rate law
2
k CH3 N
v
1.
The rate constant can be determined from eithe
Practice Problems on Required Mathematical
Skills
This problem set is designed to help you identify areas in which your
mathematical skills might be weak. It is not designed to test every last skill
you might need in this course. Nevertheless, it will giv
Solutions to the Practice Problems on
Required Mathematical Skills
1. Simplify each of the following expressions as much as possible:
(a) pH
(b) log10 (10x2 ) = log10 10 + log10 x2 = 1 + 2 log10 x
(c) x
(x + 1)2
doesnt simplify.
(d)
x2 + 1
2. Solve the fo
Chemistry 2000 Spring 2006 Final Examination
Name:
Student number:
Time: 3 hours
Aids allowed: Calculator
Instructions: Answer all questions in the spaces provided. You can use the backs of pages for
scratch work or for extra answer space. If you do need
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Chemistry 2000, Fall 1996 Final examination
You have three hours to complete this exam. You may not leave the examination hall in the first hour or
in the last 10 minutes. The aggregate value of all questions on t
Chemistry 2000 Spring 2001 Section B
Final Examination
Time: 3 hours
Aids allowed: Calculator. In particular, periodic tables and other written or printed materials are
excluded.
Additional data is given at the end of this paper.
Write all your answers in
Chemistry 2000 Spring 2002 Final Examination
Time: 3 hours
Marks: 100
Aids allowed: Calculator. No printed materials (e.g. periodic tables, calculator manuals) are allowed.
Formulas and data are given on page 4.
Instructions: Answer all questions in the b
Solutions to the Practice Problems on Equilibrium
2
a2
PCO
PCO P 2
CO
aC aCO2
1 PCO2 P
P PCO2
aH2 CO3
H2 CO3 c
P H2 CO3
(b) K
aCO2 aH2 O
PCO2 P XH2 O c PCO2 XH2 O
It is usually the case that the mole fraction of the solvent is very close to 1. It is then
Practice Problems on Equilibrium
All of the problems given here assume the use of proper thermodynamic equilibrium constants
(phrased in terms of activities).
1. Write equilibrium constant expressions for the following reactions both in terms of activitie
Practice Problems on Equilibrium
All of the problems given here assume the use of proper thermodynamic equilibrium constants
(phrased in terms of activities).
1. Write equilibrium constant expressions for the following reactions both in terms of activitie
Practice Problems on the Relationship between Kinetics
and Equilibrium
1. Suppose that, for the elementary reaction
k1
and the equilibrium constant K
12
3 L mol 1 s 1
10
1
1015 . What is k 1 ?
14
k
k1
C
B
A
Notes: Watch your units. For reasons which we
Practice Problems on the Relationship between Kinetics
and Equilibrium
1. Suppose that, for the elementary reaction
k1
and the equilibrium constant K
12
3 L mol 1 s 1
10
1
1015 . What is k 1 ?
14
k
k1
C
B
A
Notes: Watch your units. For reasons which we
Solutions to the Practice Problems on the Relationship
between Kinetics and Equilibrium
1. The rate of production of C (for instance) is
1
k
10
12
k
18
s
1
1
1
k 1C
k1
K
k1
k1 1 4 10 3 L mol 1 s
K
1 2 1015 L mol
C
(a) A and B are reactants. C is an interm
Solutions to the Practice Problems on the Relationship
between Kinetics and Equilibrium
1. The rate of production of C (for instance) is
1
k
10
12
k
18
s
1
1
1
k 1C
k1
K
k1
k1 1 4 10 3 L mol 1 s
K
1 2 1015 L mol
C
(a) A and B are reactants. C is an interm
Chemistry 2000 Spring 2006 problems:
Biochemistry
1. Write a balanced reaction for the condensation of the sugars erythrose (C4 H8 O4 )
and xylose (C5 H10 O5 ).
2. What is a lipid?
3. Draw the structure of the triglyceride formed by condensation of glycer