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Last Link-check: 2018.12.22
Note: links shown in {braces} are archived copies of pages that have disappeared and are no longer maintained.
An Introduction to Chemistry by Mark Bishop. There are two versions of this current textbook, both containing the same information but organized differently: the 'Chemistry-first' version begins with actual 'chemistry' — that is, chemical equations and reactions. The alternative 'Atoms-first' format saves this stuff for later, and begins with atomic theory and bonding. To download PDF versions, select Chemistry-First or Atoms-First. Please note that although you may download these for free, Mark asks that those who make regular use of them pay a shareware fee of $20. Individual chapters for iPad, iPhone, Android devices and Kindle are also available: Chemistry-First, Atoms-First.
Chemical Principles, 3rd Ed (Richard Dickerson, Harry Gray and Gilbert Haight, 1979) - This 1979 text is well-regarded and still good for most first-year General Chemistry courses. Each chapter can be downloaded as a separate pdf file; to see which one you need, move your mouse over the image and the title will appear.
Chemical Principles (CK-12 foundation; Sharon Bewick, Johathan Edge, Therese Forsythe, Richard Parsons) A single 900-page, 51Mb pdf file; download.
General Chemistry - a free textbook compiled from the work of various authors. It is available in the format of a 'help' file that works with MS Windows. Please see here for details.
Principles of General Chemistry - available as a PDF file (147 Mb) or as a zip file for use offline with a Web browser.
Thermodynamics and Chemistry - by Howard DeVoe, U. Maryland (2014) This free book in PDF format is a revised and enlarged version of the first edition published in hard-cover format in 2001 by Prentice Hall.
Free Organic Chemistry textbook - Individual chapters of Organic Chemistry by Daley & Daley can be downloaded as pdf files.
College-level online lectures
UC-Berkeley eChem1a: Online General chemistry - These professionally-made videos, most of which feature Prof. Mark Kubinec, are of outstanding quality - perhaps the best college-level general chemistry tutorials available. There are more than 400 of them, organized into 38 lessons; many of the latter contain problem-solving tutorials, interactive quizzes, and lab demonstrations. Most of the videos are fairly short (5-15 min) and can be accessed in any order.
MIT Principles of Chemical Science - This MIT OpenCourseWare course provides an introduction to the chemistry of biological, inorganic, and organic molecules. The emphasis is on basic principles of atomic and molecular electronic structure, thermodynamics, acid-base and redox equilibria, chemical kinetics, and catalysis. More MIT Chemistry lectures and videos.
Yale Freshman Organic Chemistry - Another excellent series, this one covers the two-semester first-year course which includes organic chemistry. These are llive classroom lectures, given by Prof. J. Michael McBride. His descriptions of the historical development of important concepts is unusually good, and adds to their understanding. Some of the projected slides are hard to read.
First-semester lectures - Second-semester lectures
Reacciones Químicas y Cálculos Estequiométricos - Aprenderás los conceptos básicos de las reacciones químicas y profundizarás en su estudio cuantitativo (estequiometría). (Universitat Politècnica de Valencia)
Web-based resources for General Chemistry
ChemWiki: The Dynamic Chemistry E-Textbook - a collaborative approach toward chemistry education where an Open Access textbook environment is constantly being written and re-written by students and faculty members resulting in a free Chemistry textbook to supplant conventional paper-based books. The material is organized into sections for analytical, biological, inorganic, organic, physical and theoretical chemistry. Each of these contains topics ordinarily included in 'general' chemistry, as well as more advanced ones that go beyond first-year college level.
General Chemistry Online! - an interactive guide and Web resource for students and teachers of introductory college chemistry, maintained by Fred Senese of Frostberg State University (MD). A well-organized wealth of material, including collections of notes and guides for introductory General Chemistry, skills checklists and online self-grading examinations, and a Q&A column.
An Introduction to Chemistry - an online version of a text by Mark Bishop of Monterey Peninsula College (CA). It is intended primarily for students in beginning chemistry courses. ($20 'donate-ware', and well worth it!)
Virtual Chembook - this nicely-done site by Charles Ophardt of Elmhurst College covers a wide swath of general, organic, and environmental chemistry. The text material is interesting and well written without attempting to be encyclopedic.
General Chemistry Virtual Textbook - a free collection of comprehensive, in-depth treatments of various topics, intended to supplement or replace conventional textbook treatments. It is aimed mainly at the first-year college level, but advanced high school students will find much of it useful. (Steve Lower, Simon Fraser University)
The Chemogenesis Webbook - this extensive, excellent and comprehensive site by Mark Leach tells how chemistry emerges from the Periodic Table and bifurcates into the rich and extraordinary science that we know and experience.
Chemistry tutorial series on YouTube and other video collections - a summary of the major collections, including the Khan Academy, and those done by various teachers, mostly at the high school level.
WikiBooks on Chemistry - Many topics in general chemistry are covered here, and are worth looking at. But as in any 'wiki-' type project to which anyone can contribute, the quality is variable, and the visual design is primitive.
Tanner's General Chemistry - a large collection of pages on matter (including quantum theory), physical chmistry, electrochemistry, and aqueous solutions.
AUS-e-TUTE -an Australian 'science education site being developed by experienced teachers.' They offer tutorials, texts, games, drills to registered members, as well as an extensive collection of tutorials for non-members.
Chemistry Web Resources - this site maintained by Ron Rinehart of Monterey Peninsula College contains a wealth of material oriented toward chemical education, all well organized in a visually-attractive way.
ChemPaths: Student Resources for General Chemistry - a comprehensive collection of tutorials from the Chemical Education Digital Library
KnowledgeDoor - an excellent compendium of Chemistry- and Science-related data, in many ways more comprehensive than the Handbook of Chemistry and Physics, and certainly more convenient to use. Should be bookmarked by every serious Chemistry student!
The ChemCollective student page has links to practice problems and tutorials on various topics.
College physics for students of biology and chemistry - This hypertextbook by Ken Koehler is nicely organized and is the ideal place to go when your Chemistry textbook lets you down.
How to pass chemistry - sound advice that is widely ignored.
{High School Resources on the Web} - this extensive collection of links at Bob Jacob's Wilton HS site apparently disappeared in early 2008, but this link to a 2007 archived version should still be useful for both high school and college-level General Chemistry.
This Week in the History of Chemistry - part of Carmen Giunta's (Le Moyne College) excellent Classic Chemistry site, 'This Week' presents mini-timlines covering the current two-week period.
{Discovery and naming of the chemical elements} - this site by David Trapp organizes the elements according to whether their names are derived from celestial objects, places, minerals, etc.
Discovery of the elements - {Elementistory} provides very brief summaries; the {Los Alamos periodic table} offers more comprehensive historical information.
'Story Problems' - some practical advice for those addicted to 'plug-and-chug'.
Chemistry Problems - worked examples - This About.com site has a fair selection.
Eight Tips for Success in Science Courses - solid advice from a Georgetown University prof.
Chemistry Packets by veteran teacher Mark Rosengarten. A collection of notes and worksheets in pdf format in two 13-unit sets, one for honors, and the other for Regents Chemistry. Each unit begins with a nicely-organized set of definitions and notes, and contines with worksheets that can serve as student homework. Although directed at the high school, these materials can serve as a good review for college chemistry students.
Purdue University General Chemistry Topics - Notes and practice problems on a large number of topics.
ChemSpider 'is a free chemical structure database providing fast text and structure search access to over 58 million structures from hundreds of data sources.'
Videos for General Chemistry
There are now problably thousands of these on YouTube and other sites — far too many for one person to review, let alone to keep up to date. In 2013, I created a list of some of the better videos that I considered worth recommnding to others.
Doc Brown's Chemistry Clinic- general review/revision site for UK GCSE, AS and A2 chemistry and USA/Canada grades 9-12. Revision notes, multiple choice tests, structured questions, graphics and extensive links to useful and interesting CHEMISTRY sites. One site speciallity is the structure and naming of organic compounds.
ChemistryCoach is a high school course support page of enclyclopedic proportions. Authored by Bob Jacobs of Wilton High School, this well-organized site contains hundreds of links that will be of interest to students at both the high school and first-year college levels.
ChemThink - This new site consists of a series of interactive quiz-based tutorials. There are also some laboratory simulatons. Registration is required, but is free.
ChemTutor covers a variety of topics - aimed mainly at HS and AP Chemistry.
The Chem Team - Tutorials for High School Chemistry in all standard topics for students in high school and Advanced Placement chemistry.
General Chemistry I, General Chemistry II - 'A Virtual Textbook' and a reliable set of lecture notes covering a complete college-level course by Michael Blaber of Florida State U. Look in the left-hand frame to see what topics are available.
Merlin's Principles of Alchemy is a chemistry hypertextbook in the form of a large set of HTML files that users download and then view with their Web browsers off-line. It is organized in an interesting way, and is intended to support users having a wide range of backgrounds and capabilities, including home-schoolers and adult learners. There is a nominal charge for downloading the material.
{Science Help Online Chemistry Lessons} - a nice set of lessons and reference materials by Greg Curran of Fordham Preparatory School.
Quantum theory and the atom - a well-organized and understandable set of Web pages covering quantum mechanics and its applications, including such practical ones as cat scans and microwave ovens. Well worth a look!
Virginia Tech's HyperMedia site has some nice General Chemistry tutorial pages.
Virtual Chemistry Experiments - a collection of interative web-based chemistry tutorials. The tutorials employ Physlets and Chemistry Applets to simulate experiments or depict molecular and atomic structure. Topics include equilibria, kinetics, coordination chemistry, and crystal structure. (David Blauch, Davidson College)
The basics
What is Chemistry all about? An introduction to chemical science. This tutorial attempts to present the major concepts that define modern chemistry, without, of course, getting into the gory details! The unit concludes with an illustrated summary of the main currents of modern chemistry. (S. Lower, Simon Fraser U.)
Preliminaries: stuff you should know before delving too far into Chemistry - tutorials covering the following topics: classification and properties of matter, density and buoyancy, energy, heat and temperature, units and dimensions, measurement error, significant figures and rounding off (these last three topics are identical with the first three in the lesson described immediately below.) (S. Lower, Simon Fraser U.)
Matter and measure: all about units, uncertainty, significant figures,and how to deal with experimental error. Thorough coverage of the basic ideas relating to units and dimensions, the SI system, accuracy, precision, and uncertainty in measurements, significant figures and rounding off, treatment of random and systematic error, standard deviation. (S. Lower, Simon Fraser U.)
Units and conversion factors - see below
LeChatelier's Principle interactive quiz by Gary Bertrand
ChemBalancer and Element Quiz - four games you can play online.
Balancing Chemical Equations - 1270 reactions, organized into easy, intermediate, and 'challenging'.
Introduction to basic atomics, mole concept, calculations based on formulas and equations, and nomenclature - (S.K. Lower, SFU) these five lessons offer in-depth treatment of these topics at an introductory level.
Acids and bases
All about acids and bases - this set of seven lessons covers everything you need to know about the fundamental concepts (Arrhenius, Brønsted-Lowry, and Lewis) of acids and bases. Other lessons cover an elementary treatment of pH and titration, how to recognize acidic and basic substances from their structures, and a gallery of commonly-encountered acids and bases. Aside from the material on pH, there is no math in this lesson set; acid-base equilibrium calculations are not covered here.
Acid-base without algebra A simple graphical method of solving pH problems that gives as good answers as algebraic solutions and provides a global view of what species are significant at any pH. Especially useful for polyprotic systems which would otherwise require solution of many simultaneous equations.
Acid-base tutorial (PDF format; Dan Dill, Boston U) - this excellent tutorial covers all the major topics commonly encountered at the general chemistry level, with an unusualy thorough treatment of buffer systems.
ChemBuddy pH Calculation tutorials - an extensive set of online tutorials covering most aspects of acid-base calculations. A good collection of titration- and other plots.
Acid and Base Tutorial (U of British Columbia) - Another nicely-organized set of lessons, each consisting of a well-done tutorial, plus a multiple-choice quiz.
The fall of the proton:Will this acid react with that base? How to understand acid-base reactions (This simple view of modern acid-base theory dates from 1954, but still hasn't made it into the standard textbooks.
Acid-base review (UNC-Chapel Hill) offers a compact treatment of the fundamentals of acid-base calculations.
Acid-base t
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