Power points
Chem 1984 Fall 2013
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date |
item |
notes |
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Monday 8/26 |
Bring calculators and manual to the
first lab, maggots. |
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Wednesday 8/28 |
Thomson, Rutherford: how the first two empiric models of the
atoms came to be |
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Friday 8/30 |
-Quiz 1 -Getting a handle on atomic
dimensions; why electrons give physicists and chemists headaches |
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Monday 9/2 |
Uncertainty principle revealed; Rutherford’s model is wrong; The beginnings of a fix to the atomic
model |
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Wednesday 9/4 |
Calculations with wave equation |
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Friday 9/6 |
Quiz
2 The
photoelectric effect unmasked; |
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Monday 9/9 |
DeBroglie
hypothesis and the Bohr atom; Calculating with Bohr’s
equation (failures of Bohr model; ) |
How
Photoelectric effect and l=h/mv leads
to the Bohr model…and why it fails. |
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Wednesday 9/11 |
Failures of the Bohr atom; the spectroscopist’s atom-why we sing the spdf song |
The
fourth atomic model and the vengeful return of the experimental chemists |
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Friday 9/13 |
Singing the spdf song including the d- switch verse; |
Practice
enumerating the energy levels of elements; |
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Monday 9/16 |
More Practice with
transition metal configurations; Schrӧdinger’s
final solution for H; |
Schrӧdinger model and the `multiverse’ problem; Quantum
# counting rules |
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Wednesday 9/18 |
How Schrӧdinger theory generates the Periodic Table; some examples of using the n,L,mL,ms counting rules; |
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Friday 9/20 |
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Monday 9/23 |
Trends
in atomic radii, ionization potential and electron affinity; The
mole plan; Brief
revisit of isotopes and average mass |
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Wednesday 9/25 |
Nuclear death and the n/p ratio; mole as the chemist’s dozen |
Unobtanium and the stability of atoms; the mole
concept deconstructed; sample problems worked |
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Friday 9/27 |
Examples
of basic, extended, and both compositional and stoichiometric mole problems
worked |
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Monday 9/30 |
More mole calculations: relating components of an molecule to each other and to the molecule |
“Body
parts calculations” (continued from Lecture 14); Quiz
3 |
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Wednesday 10/2 |
Drill
and practice is the focus here; Problems
both from text and instructor are worked |
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Friday 10/4 |
One more % Composition Problem; Combustion problems and Reaction Equation balancing |
Ditto
to above |
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Wednesday 10/9 |
More
practice balancing reactions; An overview of the process of solving
stoichiometry problems and some practical justifications for why |
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Friday 10/11 |
Using
factor-label and mole ratio methods to solve stoichiometry problems. Quiz 4 |
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Monday 10/14 |
Working
the many versions of the `reaction stoichiometry’ problem |
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Wednesday 10/16 |
Both
non-chemical and chemical calculations featuring limiting conditions and % yields |
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Friday 10/18 |
Introduction to bonding models: ionic vs. covalent behavior and electronegativity |
Demos
and preliminary thinking about what holds stuff together at the molecular
level |
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Monday 10/21 |
Using
electronic configurations to deduce ion charges and how the crossing trick let’s us predict correctly a compound formula; visuals of
ions |
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Wednesday 10/23 |
Ionic Crystal Structures;
Non-Ionic Bonding and the Lewis Octet Model; |
Curious factoids about crystals; the Lewis approach to bonding |
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Friday 10/25 |
Lewis
structures demonstrated ad nauseum… |
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Wednesday 10/30 |
Resonance,
formal charge rules |
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Friday 11/1 |
Practice extending Lewis rules past the octet rule; |
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Monday 11/4 |
Using Lewis structures to predict molecular shape: VSEPR theory |
How
to use balloons and Lewis structures to guess molecular shape |
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Wednesday 11/6 |
How
to use balloons and Lewis structures to guess hybridization |
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Friday 11/8 |
spn assignments from Lewis basics |
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Monday 11/11 |
Example
of results from Spartan 8 quantum chemical program; Heat,
temperature and pecific heats |
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Wednesday 11/13 |
Typical calculations
with specific heat; Introduction to heat, work and internal energy |
Specific
heats and heat flow; Introduction
to internal energy, Hess law and thermochemistry |
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Friday 11/15 |
Work, Heat and internal
energy changes for an ideal gas piston; |
How
work, heat and energy exchange in a model system; How constant P turns heat
into a state function (enthalpy) |
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Monday 11/18 |
Number
crunching with heats of reaction; heats of formation |
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Wednesday 11/20 |
Practice using Hess Law and standard
heats of formation; Pressure units and the simple, dimple common sense nature
of the basic gas laws (at constant n); |
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Friday 11/22 |
How we go from the empiric to Ideal Gas Law and some typical problems using both; The wacko implications of PV=nRT,or, What the Kinetic Theory of gases is really saying… |
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Monday 11/25 |
How we use the Ideal Gas Law in
Chemistry; The Ideal gas law is a wacko idea; the kinetic theory explaining
is nuts, but it works; …but it doesn’t, so we use Van Der Waal corrections |
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Monday 12/2 |
Ways to study phase changes: The liquid-vaporization curve method; |
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Wednesday 12/4 |
How to extract vaporization heats from
P vs. T curves (Clausius-Clapeyron equation); How heating/cooling curves provide specific
heats for both single and two phase situations |
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Friday 12/6 |
Practice interpreting cooling/heating
curve data; Phase diagrams are maps; How Phase diagrams are built fro heating/cooling curves; |
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Monday 12/9 |
Phase diagram interpretation; Examples of specific phase diagrams
and what we learn from them |