Information for Halverson’s chemistry students.

The chapter numbers relate to our textbook, World of Chemistry by Zumdahl (McDougal Littell pub.) 2007 edition.

Chapter 3: Chemical Foundations: Elements, Atoms, and Ions
Here is an interactive Periodic Table with useful data on every element. It can help with the homework!

Chapter 10: Energy
A table of Specific Heat Capacities is here: (You will need it for the heat capacity lab)
And here:

Chapter 11: Modern Atomic Theory
Harvard University’s page on atomic spectra:

University of Strasbourg's page on atomic spectra:

University of Strasbourg's software to simulate looking at atomic spectra through a real spectroscope:
To simulate the spectroscopes we use in class, use these settings: Linewidth=10, continuum=0.2, contrast=2

The periodic table, electron orbitals, in an interactive format. Also a good downloadable periodic table:

Chapter 17: Equilibrium
Video of Halverson demonstrating Le Chatelier's principle.

Explanation: 0.2M CoCl2 solution (pink) is made to turn blue by adding HCl.
The reaction is: Co2+ + 4Cl- <-----> CoCl4 2-
Addition of Cl- ions, in the form of concentrated HCl, forces the reaction to the right, as predicted by Le Chatelier. The CoCl4 2- is blue.
Later, dilution by water allows the reverse to happen, returning the solution to its original pink color.
Finally, the waste acid is neutralized by dumping it into a sodium bicarbonate solution, converting it to salt water and carbon dioxide.
HCL + NaHCO3 ----> NaCl + H2O + CO2

General purpose chemistry video
Here is a video series that I like to show in my chemistry class: The World of Chemistry, with experiments by Don Showalter, and introductions by Nobel prize-winning chemist Roald Hoffmann.