Buffers for pH Control by Rob Beynon, University of Manchester Institute of Science and Technology
Provides recipes for making buffers of desired pH provided ionic strength and temperature of reagents is given.
pH meter and pH measurements Marcin Borkowski
All you want to know about pH meters, pH measurements and pH electrodes. Introduction to history, theory and good practice, reliable measurements and electrode maintenance. Links to models and manufacturers.
ChemID Plus Provided by National Library of Medicine
Database of over 380,000 chemicals, synonyms, structures, regulatory list information, and links to other databases
DTP / 2D and 3D Structural Information Provided by the National Cancer Institute
The NCI has collected information on almost half a million structures in the past forty years. The collections of structural information are freely available.
EAFUS: A Food Additive Database Provided by US Food and Drug Administration
Contains administrative, chemical and toxicological information on over 2000 substances directly added to food.
ECOTOX Database Provided by US EPA
ECOTOX (ECOTOXicology) database provides single chemical toxicity information for aquatic and terrestrial life.
Site provides links to journals, free abstracts, jobs and internships, and chemistry tools including NMR prediction and IUPAC naming. Free registration.
NIST Chemistry Handbook by National Institute of Standards and Technology, US. Gov.
Site provides a searchable database of general chemistry information including formula, name, CAS registry number, author, and structure. It also provides physical properties of materials. (This might be particularly helpful to organic chemistry students.)
Preparation for Topics in College Chemistry chemreview.net
Site provides a good review of general chemistry topics and also gives mini lectures to help understand difficult topics. Use this as a review to help prepare for a chemistry test.
Titration Dr. Yue-Ling Wong
Site provides a titration simulator with different concentrations of acids and bases.
Chemistry Guide – comprehensive listing of quality chemistry sites on the Internet.
WWW Chemistry Guide – comprehensive and evaluated guide to web sites related to chemistry and the chemical industry. Its mission consists
in collecting and independently annotating all useful chemistry sites.
Site provides a great interactive explanation of atomic orbital hybridization.
National Mole Day National Mole Day Foundation, Inc.
National Mole Day Foundation, Inc. site
Electron Configurations by Carnegie Mellon University
Site provides limited data on the elements, but also provides well-done electronic configurations of the elements.
Periodic table displays discoverer, atom weights, electron shells, and valence patterns of each element.
Periodic Table of Elements and Data Unknown
Site provides a useful periodic table. Also by clicking on an element, informations about the element will appear. This includes atomic mass, melting point, boiling point and even a history of the element.
Web Elements Interactive Periodic Table by Mark Winter, University of Sheffield
Site provides pages about isotope patterns, element percentages, yield, oxidation states, electron states, electron counts, VSPRE, and MLXZ for compounds.
Chemical Reaction Stoichiometry by Smith, Sikenata, and Missen, University of Guelph
Site provides tutorial and Java applications for solving stoichiometry problems using the matrix reduction method. Requires Adobe Acrobat.
Limiting Reagents by Carnegie Mellon University
Site provides a good visual representation of limiting reagents using the example of ammonia and carbon dioxide.
Stoichiometry Equilibrium by Carnegie Mellon University
Site gives molar and mass quantities of reactants and products of iodine, hydrogen, and hydrogen iodide at various points of the reaction.
Molecular Structure Calculations Paul J. Schupf
Provides calculations for bond lengths, atomic charges and dipole moments. Also illustrates the best Lewis structure possible in 3-D. There is a calculator at the end used to create your own molecule that is not listed on the page.