Punks are an assortment of young adults who exercise and debate punk ideas in and
through the Black Cat Cafe.
Being punk is a way of critiquing privileges and challenging social hierarchy, and are in spired by anarchism.
Many punks associate the cilizing
Prof. Van Arsdale
Apr 8, y
Regardless weather you were valedictorian of your class or earned
straight As in high school the college transition is difficult for everyone. You are
no longer to
Introduction to Electron Density Models
Adapted with permission from G.P. Shusterman and A.J. Shusterman
Electron density models constitute a powerful new method to understand electronic
structure and its relevance to chemical phenomena. Comput
Unit cell: the fundamental unit from which the entire crystal may be created by purely
o Seven Crystal systems 14 Bravais lattices
o Significance of x-ray cryst
Phase Changes of Mixtures (Lecture45)
1. Concentrations of solutions:
A A, B B, A B
0 Vmix =
1. One definition of ideal solution:
H mix =
interactions all same
The Solid State (Lecture 41)
Solids can be broadly classified as either crystalline or amorphous. Crystals possess longrange order.
Crystalline solids consist of atoms, ions or molecules arranged in a regular, repeating
Spectroscopy (Lecture 48)
Types of Spectroscopy
A. Spontaneous (Fluorescence & Phosphorescence)
1. Raleigh (elastic)
2. Raman (inelastic)
General Considerations in Spectrosco
Lecture 49 (Spectroscopy Continued)
Widths and Intensities of Spectral Lines
1. Line Widths
a. Natural line-width
b. Doppler broadening
c. Pressure broadening
2. Boltzmann Distribution Law: N n = ce
= e k BT
Estimates of relative populat
LECTURE 38: PHASE TRANSITIONS
STATES OF MATTER
Ordinary matter exists in three states: solid, liquid, and gas.
(1) Gases: molecules relatively far apart; hence weak attractive forces; expand to fill
container (no fixed volume or shape).
(2) Liquids: stron
Bonding in Solids (Lecture 19)
Based on the type of bonding, we classify solids as metals, semiconductors, and
insulators. Electrical conductivity can be used to distinguish between these three types
of materials. A semiconductor is a solid crystalline ma
Gases (Lecture 38)
1. Why study gases?
2. Introduction to gases
3. Pressure of a gas
b. Units (Torr, Pascal, bar, atmosphere)
c. Pressure at the bottom of a column of liquid P hdg
4. Gas laws:
a. Boyle's Law: PV k1
b. Charles' La
Liquid solutions: (Lecture 46)
1. Ideal solutions obey Raoults law: PA = xA PA*
xA :mole fraction of solvent
PA* : vapor pressure of pure solvent
2. Colligative properties (involatile solute)
3. Binary mixtures of volatile liquids
a) Ideal solution:
1. What is spectroscopy?
The study of the absorption and emission of
electromagnetic radiation by matter.
2. Why is spectroscopy useful?
Use as Analytical tool: Lambert Beer Law A
Verify quantum mechanic
Lecture 40 Gases (Continued)
One mole of any gas has a total kinetic energy of
Root mean square speed: urms
The average kinetic energy per molecule: k murms
GRAHAM'S LAW OF EFFUSION:
Lecture 39: The Properties of Gases (Continued)
in a mixture act independently of each other. In a mixture, each
Gas Mixtures Gases
gas exerts a pressure that is the same as it would exert if it were present alone.
Dalton's Law of Partial Pressures: PT PA
Week 1: Lifes Far-Flung Raw Materials Summary
Space debris such as comets and meteors may be responsible for causing changes in Earths
atmosphere and oceans that made it capable of sustaining life. Recent research has led scientists to
The strongest IR band of 12C16O occurs at 2143 cm1. Which vibrational transition does this band
correspond to? Find the force constant of 12C16O. The molar mass of oxygen is 15.9949 g. Make sure to
include the units.
To a good approx
Prehistoric food culture in the Nabta Playa
unlike most prehistoric groups, te people of the Nabta Playa organized their food cul tures first around the domestication of cattle, and later around the domestication of
Lecture 50 (Spectroscopy Continued)
A harmonic oscillator can describe the vibrations of a diatomic molecule
En h n +
n is the vibrational quantum number; n = 0, 1, 2.
Energy Levels and Rotational Spectroscopy of Diatomic Molecules
Rigid Rotor (two