Just Ask Antoine!
What's New on General Chemistry Online
Server ProblemsTraffic to Antoine now greatly exceeds our ancient DEC 3000/600's capabilities. We've purchased a new webserver which should be online in late March. The new machine will provide an order of magnitude increase in bandwidth and speed, and make several new services feasible.
The Common Compound Libraryhttp://antoine.frostburg.edu/chem/senese/101/compounds/library.shtml
The Common Compound Library contains properties, structures, and information about over 800 compounds, elements, and substances encountered in introductory chemistry courses and in everyday life. While many excellent compound and structure libraries already exist on the Web, the Common Compound Library is designed specifically for student use.
Initially, the Library will provide easy access to chemical synonyms, molecular weights, structures, equilibrium constants, thermodynamic properties, and common uses, with properties presented in a variety of common units. Structure information includes flat structural formulas, ball and stick models, electron density/electric potential maps, and Chime "live" structures that can be rotated and queried for bond lengths, bond angles, and torsion angles.
The Library is currently being expanded and integrated with Graphpad to allow chemical property plotting for matched compound categories and series.
User CommentsPrint/comment/contact facilities have been added to all FAQ pages and most note pages. The comment facility can be used to annotate a page, and also to view other reader's annotations.
Just Ask AntoineJust Ask Antoine! has been redesigned. The old URL http://antoine.frostburg.edu/HyperNews/get/just-ask-antoine.html) is no longer in use. Please update your bookmarks to http://antoine.frostburg.edu/chem/senese/101/just-ask-antoine.shtml
Significant Figures Quiz and related pageshttp://antoine.frostburg.edu/chem/senese/101/measurement/sigfig-quiz.shtml
The significant figures quiz
is now 5 questions randomly from a set of 20. The (controversial!) questions on counting significant digits in averages and on subtractions that result in numbers with trailing zeros have been explained in more detail and moved out of the quiz and into the FAQ: http://antoine.frostburg.edu/chem/senese/101/measurement/faq/averages-and-sigfigs.shtml
Why should the rules for significant digits not be applied to averages? http://antoine.frostburg.edu/chem/senese/101/measurement/faq/difference-sigfig.shtml
Why is 1101 cm - 1091 cm = 10 cm, with 2 significant digits?
Some Recent Additions to the FAQhttp://antoine.fsu.umd.edu/chem/senese/101/liquids/faq/h-bonding-vs-london-forces.shtml
An introduction to van der Waals forces, the tenuous forces that make life possible. Includes Flash4 representations of dipole-dipole and London forces. http://antoine.frostburg.edu/chem/senese/101/measurement/faq/simple-sigfig-rules.shtml
Significant digit counting made simple. http://antoine.frostburg.edu/chem/senese/101/kinetics/faq/temperature-and-reaction-rate.shtml
The exotic and complex shapes of f-orbitals.
Recent Web PicksElementymology & Elements Multidict (Peter van der Krogt) http://members.xoom.com/tneleme/
Historian Peter van der Krogt presents the origins of the names of the elements, along with their dates and places of discovery. The "Elements Multidict" gives the names of elements in over 20 languages.
Eric's Treasure Trove of Chemistry (Eric W. Weisstein)
How to make your own iron gall ink (Cyntia Karnes,Museum Boijmans van Beuningen, Rotterdam)
Whelmers- McRel's Accessible Science Series (Steve Jacobs)
General Chemistry Online! Newsletter
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