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04/25/09

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Welcome to Chem Professor!

We are committed to fostering science literacy by communicating the wonders of chemistry to ordinary people. We will accomplish this by providing interesting, informative articles and study aids that do not require our readers to have any particular background.

 

 

Educational Resources

Features

Periodic Table

Try out the Chem Professor interactive periodic table. Click on an atomic symbol for elemental properties as well as some interesting tidbits written by Joseph, whose hobby is collecting samples of the elements.

 

Games and other fun stuff! Chemistry Professor now has games (one, anyway) for you to download. ChemDoku is a logic puzzle game similar to Sudoku, also known as Number Place.

 

Outlines

Need help with your freshman or AP chemistry class? Check out our course outlines and lecture notes for preparatory and general chemistry courses. More elaborate outlines can be found in our WebBooks.

 

Tutorials

Do you need help learning chemistry skills? Try these tutorials for step-by-step instructions and guided practice to help you learn basic chemistry skills like balancing equations and naming inorganic compounds.

 

Chemistry Class Resources

CHEM 1405

 

Chemistry Happenings: Green Chemistry is a trend toward changing the chemical industry so as to reduce our reliance on and production of hazardous substances. The University of Oregon and the National Science Foundation host GEMs,  a website filled with educational resources for teachers and students who are interested in integrating Green Chemistry into their classrooms.

Happy Birthday: George Claude, the inventor of the neon light, was born September 24, 1870.

Joseph's Element Collection:

 Out of all the noble gases, Neon glows the brightest in a vacuum discharge tube when the atoms are excited by an electric current. This is why it is a popular choice for neon-tube lights.
   

Joseph received this plasma lamp as a Christmas present when he was in the 5th grade. It contains neon gas. An electric currents ionizes the neon atoms which arc to give the impression of lightning inside the lamp. Joseph actually thinks that the color looks more like excited Argon than Neon.

 

Compound of the Week: Neon fluorohydride, HNeF, is the this week's compound, even though it is still theoretical. Neon is one of the Noble Gases and does not form covalent bonds. But that depends on how you define a 'bond' as well as how hard you try to force one to form. While fluorohydride molecules containing larger members of the same periodic table family have been synthesized, HXeF for example, argon and neon analogs remain illusive. However, calculations suggest that they could form under the right circumstances (Khiachtchev 2000). Neon fluorodhydride molecules should be possible at high pressure, but how high is 'high pressure'? Researchers at UC Irvine calculate that at pressures higher than 23 gigapascals, helium fluorohydride is completely stable (Bihary 2002). Check your dimensional analysis skills by converting 23 GPa to atm.

 

References

Bihary, Z. Chaban, G. M. & Gerber, R. B. (2002) Stability of a chemically bound helium compound in high-pressure solid helium, J. Chem. Phys. vol. 117, p. 1508.

Khriachtchev, L. Pettersson, M. Runeberg, N. Lundell, J. & Rasanen, M. (2000) A stable argon compound, Nature, p. 874.

 

 Science News from Sciencebase

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This site was last updated 04/25/09