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Chemistry 233 Practice Midterm (Solutions)
Total number of questions = 12
Total Marks = 92
Time = 2 hours
Page 1 of 6
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Q1: A > C > B > D > E
Q2: D > B > A > C
Q3: C > A > E > B > D
Q4:
C
Lecture #12: Thermodynamics
Key concepts
- problem solving, G, K
- van t Hoff equation
Related reading: Chapter 5
copyright SKStraus, 2013
1
G = H T S
o
o
G = H (298)S
0
G =
o
f
G
G
o
o
f
reactants
products
o
G = G + RT ln Q
o
G = RT ln K
copyright SKStr
STAT 200: Course Aims and Objectives
1
Attitudinal aims
In addition to specic learning outcomes, the course aims to shape the attitudes of learners regarding the eld of Statistics. Specically, the course
aims to
1. Motivate in students an intrinsic intere
University of British Columbia
STAT 200 - ELEMENTARY STATISTICS FOR APPLICATIONS
2011/12
_
_
Course Description: Classical inferences about means, variances, linear regression and
analysis of variance, using computers. Emphasis on problem formulation, ass
Lab 4: Sampling
Pre-Reading
STAT 200
Objectives
To sample from a population using Excel via simple random sampling and via
stratified sampling.
To see variability and bias in estimation
To compare the sampling distribution of the sample mean gotten fro
Lab 3: Regression
PreReading
STAT200
In lab 3, we will investigate the relationship between two quantitative variables using linear
regressionandusemodelstomakepredictions.
Objectives
Performaregressionanalysis.
Understandwhichvariableistheresponseandw
STAT 200, Lang Wu
1
Chapter 3. Producing Data
3.1. Some Concepts
In practice, data are often obtained either in designed experiments or in observational studies (including survey). In this chapter, we will discuss some concepts
which are among the most im
STAT 200, Lang Wu
1
Chapter 2. Looking at Data Relationship
2.1. Correlation
So far we have mostly focused on data from one variable. Sometimes we have
data from two variables, such as data on weight and height or data on age and
income. In this case, it
STAT 200, Lang Wu
1
Chapter 1. Distributions of Data
Statistics is about learning from data, i.e., getting useful information from
data. Statistics is becoming increasingly important in modern world, since
many important decisions are made based on analys
Winter 2011/12 Term 1 Statistics 200 Assignment #2
Due: 5pm on Friday Oct 14, 2011 (Total mark: 50)
1. Consider the data in the le alcohol.xls. These are data from a British government survey of household spending. We are interested in the relationship be
Assessment Regulations, Stat 200
The following outlines the rules and procedures which will be applied relating
to assessment for the course Stat 200. These rules will be departed from only
under exceptional circumstances, and in such instances all studen
SUMMARY OUTPUT
ANOVA
df
Regression
Residual
Total
SS
MS
F
Significance F
1 0.318114 0.318114 0.4735295 0.508714
9 6.0461405 0.6717934
10 6.3642545
Coefficients
Standard Error t Stat
P-value Lower 95%Upper 95%
Lower 95.0%pper 95.0%
U
Intercept 4.3511685 1.
11/10/2011
Reactions and their mechanisms
Types of reactions
Learning objectives:
You should be able to:
Classify chemical reactions as addition, elimination, substitution,
rearrangementjust four reaction types!
Correctly use electron-movement arrow con
Lewis Acids; Bases; Nucleophiles; Electrophiles
Dake
Brnsted bases are electron-rich speciesthey are attracted to (partially) positively charged
hydrogen atom/proton centers.
bases
acids
Brnsted acids are species having electron deficient hydrogen atom/pr
Learning Objectives
Equilibrium and Acidity
Describe what acid constants represent (e.g. Ka, pKa) and what
their relative sizes mean for a particular acid/base reaction (i.e. a
compound with larger Ka is more acidic than one with a lower Ka)
Define strong
1.
( ma k )(
11
r s 1ma ke c )
r ah
Comp n A h st efor l C8 H12N2 . Up r a tonwihe c s H2 / , wa ta s me i t
ou d a h
mu a
on e ci
t x e s Pt A s r n for d n o
Comp n B t a h st efor l C8 H18N2 .
ou d h t a h
mu a
a
)
i
)
Comp n A h s_ _ _d g e sof u s t
CHM 233 (UBC) Study Sheet
Basic Organic Chemistry
STRUCTURE, BONDING AND PROPERTIES
know orbital shapes
electron configurations, valencies, Lewis structures
PART II Reactions of Alkanes, Alkenes and
Alkynes
ALKANES
synthesis and reactions
ALKENES
synthesi
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Chemistry 233 Practice Midterm
Total number of questions = 12
Total Marks = 92
Time = 2 hours
Page 1 of 8
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Q1 (3 marks)
Arrange the following compounds in the order of decreasing acidity
Lecture #11: Thermodynamics
Key concepts
- free energy
- chemical equilibrium
- equilibrium constant
- third law of thermodynamics
- free energy of a reaction
Related reading: Chapter 5
http:/www.chem1.com/acad/webtext/thermeq/TE2.html
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Lecture #10: Thermodynamics
Key concepts
- free energy
- spontaneity
- phase equilibria
- Troutons rule
Related reading: Chapter 5
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1
Second law of thermodynamics
Previously, we stated that most processes around us are
irreversible
Lecture #9: Thermodynamics
Key concepts
- PV work
- irreversible; reversible
- thermodynamic cycle
- engine
- Stirling engine
- entropy
Related reading: Chapter 4
copyright SKStraus, 2013
1
RECALL FROM LECTURE 6
Work as mechanical energy: PV work
S
S
S
M
Lecture #7: Thermodynamics
Key concepts
- heat capacity
- CV
- CP
- temperature dependence
- Hess law
- standard states
- enthalpy of formation
Related reading: Chapter 4
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1
RECALL: Constant pressure
H = ( E + PV ) = qP
if
H < 0 th
Lecture#4:PhaseEquilibria
L t
#4 Ph
E ilib i
Keyconcepts
K
t
h ti
heatingcurves
coolingcurves
morecomplicatedphasediagrams
intermolecularforces
Relatedreading:Chapter3
copyrightSKStraus,2013
1
copyrightSKStraus,2013
2
f
f
f=1
f=1
f
f
copyrightSKStrau
Lecture #8: Thermodynamics
Key concepts
- enthalpy of formation
- Hess law
- enthalpy of reaction
Related reading: Chapter 4
copyright SKStraus, 2013
1
1
C ( s ) + O2 ( g ) CO( g )
2
1
C ( s ) + O2 ( g ) CO2 ( g )
2
1
CO( g ) + O2 ( g ) CO2 ( g )
2
1
C (
Lecture #5: Thermodynamics
Key concepts
- heat
- work
- conservation of energy
- change of state
- path dependence
- perpetual motion
- first law of thermodynamics
Related reading: Chapter 4
copyright SKStraus, 2013
1
Some things we want to achieve in the
Lecture #6: Thermodynamics
Key concepts
- first law of thermodynamics
- PV work
- enthalpy
- endothermic
- exothermic
- heat flow
Related reading: Chapter 4
copyright SKStraus, 2013
1
A bit more about E
- Defined as the internal energy
difference.
- Somet
Lecture#2:Thermodynamicspreamble
L t
#2 Th
d
i
bl
Keyconcepts
K
t
id l
idealgaslaw
l
molefraction
barometricdistributionlaw
Relatedreading:
Chapter6;
http:/hyperphysics.phyastr.gsu.edu/hbase/kinetic/barfor.html#c1
http:/geography.about.com/od/climate/