HELP - CH301 Topics
Periodic Table and Nomenclature
Periodic Table - a large full page table with current values
Periodic Table on Bubblesheets - (shown with other data and constants)
Structure and Bonding
Covalent Bond Radii - A Table of covalent bond radii based on atom type and bond type
Hydrates of Salts - an except from Atkins/Jones on hydrate salts
Dot Structures and Formal Charge - some simple tips on writing the BEST electron dot structures and calculating formal charge
Electronic and Molecular Geometries - a diagram with all the geometries and hybridizations shown
Gases, Solids, and Liquids
A Gas Law Simulator - Play around with virtual gases and demonstrate Boyle's, Charles', and Avogadro's Laws. It's rescalable to whatever size you want. You must have Flash Player Plugin installed.
Intermolecular and Intramolecular Forces - A diagram showing the relative strengths of the various forces between and within molecules, and ionic compounds.
Thermodynamics
Bond Energies - a little covalent bond energy table like what would be included on an exam from Quest
Thermodynamic Formulas and Concepts - Doodled - try doodling your own!
HELP - CH302 Topics
Heating Curves
Colligative Properties
Electrochemistry
Some Formulas for E-Chem and Kinetics (corrected)
Standard Reduction Table use this table for homework problems that DON'T have the values given in the problem
Electrochemistry Help Sheet This is a completely hand-drawn help sheet and is 1.8 Meg in size.
Kinetics
Acid and Base Equilibria
Water and pH
Make sure that you've memorized the common Strong Acids and Bases
Here's a nice help sheet on the pH and pOH Scales
General Acid/Base Theory - compare the equations used for all acid/base equilibria.
ONE species Problems (Type 1)
There is only one species dissolved into water for these types of problems. Dr. McCord calls them "Type 1" problems. There are four possible species you can dissolve. Below are helpsheet for each of those four. LOOK at the similarities and the differences on the sheets.
Weak Acid - only a weak acid (HA) put into solution.
Weak Bases - only a weakbase (B) put into solution.
Salt of a Weak Base - only a salt of a weak base (BHX) put into solution.
Salt of a Weak Acid - only a salt of a weak acid (NaA) put into solution.
Fraction of Species - You should be able to interpret a fraction of species diagram. This helpsheet has the equations that a fraction of species diagram comes from. The diagrams are extremely useful when dealing with multiple pH's of a given solution type which is EXACTLY what is going on with buffers and titration curves.
TWO species Problems (Type 2)
These problems will all have two species dissolved into solution, thus "type 2". When a common species in solution has 2 different sources, we call this the common ion effect. Buffer problems are common ion problems as well as many titrations.
Weak Acid and its Salt - both a weak acid (HA) and the salt of that weak acid (NaA) put into solution.
Weak Base and its Salt- both a weak base (B) and the salt of that weak base (BHX) put into solution.
Here are two help sheets on Titration Curves
- Titration of a weak acid with a strong base
- Titration of a weak base with a strong acid
Here are some Excel Spreadsheets on Titration Curves
- Titration of a strong acid with a strong base
- Titration of a strong base with a strong acid
- Titration of a weak acid with a strong base
- Titration of a weak base with a strong acid