PHYSICAL CONSTANTS
1 atm = 760 mm Hg = 760 Torr = 101.3 kPa
R = 8.314 JK-1mol-1 or 0.08206 LatmK-1mol-1
h = 6.626 x 10-34 Js
N = 6.023 x 1023 mol-1
e = 1.6021 x 10-19 coulomb
F = 96,485 Cmol-1 or 96,4
m an 674; W Holes,_ m m we) ML l =ch [cm a,
CvC/UC W) GUTCo'v bong Pm d1 Cf
IUPAC NANIIN G FOR ALKANES #3
I. Write the proper IUPAC name for each of the following:
I 5 l .
(3) CH3 " CH - CH2 CH3 (b)
NAMING of INORGANIC COMPOUNDS
Introduction
A primary control in chemical experiments is knowing the identity of the initial
substances. This knowledge can be communicated by the name of the substances
Molecular Orbital Theory
H
H
C
H
C
C
C
C
H
C
H
H
A more accurate theory than valence bond theory is molecular
orbital (MO) theory. In molecular orbital theory, we imagine that
What type of bond will two atoms have together?
If the difference in electronegativities between the two atoms is greater than 0, but less than 2.0,
the bond is polar covalent. If the difference in el
Rentember Heat energy can be silent on only one job at n time. Either it will cause
a change m temmture or change afne. Each must be calculated separately.
Chi? Bru3=lfgc qm=4.13412'g0qm=w.0 4.6
Mimic
Significant Figure Worksheet #1
Name:
I. Counting Significant Figures
For each of these, count the number of significant figures, then put each into scientific
notation, keeping the same number of
ReacTion Mechanism
The r'eacTion mechanism is The "paTh" ThaT The r'eacTion Takes.
Some r'eacTions Take mulTipIe sTeps To go from The r'eacTonTs To The
pr'oducTs.
An E\QW\Q sTep is one of These sTeps
Worksheet: Le Chatelier's Principle Name SQllkhOS
If a system aT equilibrium is subjected To a lrSS , The equilibrium is
di5placed in The direcTion That relieves The $1955 .
- A sTress is defined as a
Collision Theory
For a reaction to occur between particles (atoms, molecules, or ions). the
collision between the particles must be "effective".
A collision is effective when:
1. reactant particles ar
Solving for Equilibrium ConcenTr'aTions Using 100 Rule
AssumpTion
If The value of K is very small, we use The 100 Rule To assume ThaT x is very
small.
100 Rule: If [ ];,.ma./Keq > 100, x can omiTTed s
Answers to Factors Affecting Equilibrium Gibbs Free Energy
1. entropy increases - b, c, e, f, g
entropy decreases a, d, h, i
2. a)
b)
c)
d)
G = + 242.4 kJ
G = + 10.87 kJ
G = - 0.5 kJ
G = -35.9 kJ
3. a
Reaction Mechanisms and Catalysts
Recall: Catalyst lowers the activation energy of a reaction by changing the reaction
mechanism.
A catalyst is also added to the reaction and then is formed again once
Significant Practice Worksheet #2
Name:
Perform all operations on a calculator and write the answers with the correct number of
signicant gures. These problems are good for practicing putting number
Heat ofFusiun and Heat of Vaporization Mods
1. What is the equation for heat of fusion?
'= m AH c
2. What is the equation for heat o vaporization
01!" mil a
3. What are the units for heat of fusion?
2
Gas Laws in Chemical Reactions
Problem 6-87
A mixture of 1.00 g H2 and 8.60 g O2 is introduced into a 1.500-L flask at 25C. (a) What is the
total gas pressure in the flask? (b) When the mixture is ign
Assignment 2
5 marks each
1.
Construct a Born-Haber cycle to calculate the lattice energy of MgCl 2.
(Use data from Appendix II, Table 8.1, Figure 8.15 and Figure 9.4 of the
textbook.)
The CRC Handboo
33 SOGNaH— + %'13166?6
= ageuoo; (\qﬁseaw 3%
b0- 713.8 1’ 13.6: 6 27-00-60 o\o
:1 E49,. '56, 6;“;
kmﬂ ‘
1 \u a -I" a 'u. u‘ . a . ‘ - 0. ' oo' o
I
-.a ‘V c x K a. u ’. \ a ' mm at
Sample Final Examination
The final examination is three (3) hours long. In the actual
examination you would not be allowed consult your books or notes;
however, you would be able to use a calculator.
Sample Midterm Examination
The midterm examination is two (2) hours long. In the actual
examination you would not be allowed to consult your books or notes;
however, you would be able to use a calcula
These oppositely charged ions are then attracted to one another by electrostatic forces, and they form an ionic bond
When a nonmetal bonds with another nonmetal, neither atom transfers its electron to
Equilibrium Practice Worksheet #1
Solve the following problems using the ICE method.
1. Carbonyl bromide, COBrg, decomposes to CO and Brg at 73C. If you begin
with 0.10 moles of COBrg in a 2.5 Liter
A Short Guide to Significant Figures
Quick Reference Section
Here are the basic rules for significant figures - read the full text of this guide to gain a complete understanding
of what these rules re
Bond Energy Worksheet
1. What do you notice?
Use bond energies to determine the enthalpy change for the following reaction:
H2(g) + Cl2(g) 2HCl(g)
Solution:
H-H + Cl-Cl H-Cl + H-Cl
H= Bonds Broken Bon
Practice Worksheet for Significant Figures
1. State the number of significant digits in each measurement.
1)
2804 m 4
4) 0.003068 m
7) 750 m
4
2) 2.84 km 3
3) 5.029 m 4
5) 4.6 x 105 m 2
6) 4.06 x 10-5
Homework # 1
1) What are the two factors involved in calculating a substances heat of fusion or
vaporization? Explain.
A substances heat of fusion may be calculated by using the formula q = mHf where