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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.

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. 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.

Each of these contains topics ordinarily included in "general" chemistry, as well as more advanced ones that go beyond first-year college level. It is intended primarily for students in beginning chemistry courses. 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.

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. 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. Chemistry Problems - worked examples - This About.

Chemistry Packets by veteran teacher Mark Rosengarten. A collection of notes and worksheets in pdf format in two 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.

In , I created a list of some of the better videos that I considered worth recommnding to others. 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. Look in the left-hand frame to see what topics are available. 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.

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! 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. 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.

Lower, Simon Fraser U. 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. ChemBalancer and Element Quiz - four games you can play online. Balancing Chemical Equations - reactions, organized into easy, intermediate, and "challenging".

Introduction to basic atomics, mole concept, calculations based on formulas and equations, and nomenclature - S. Lower, SFU these five lessons offer in-depth treatment of these topics at an introductory level. 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.

The fall of the proton: Will this acid react with that base? Acid-base review UNC-Chapel Hill offers a compact treatment of the fundamentals of acid-base calculations. Acid-base titration simulator - this easy-to-use page allows you to explore a large variety of acid-base systems, including polyprotic ones. There is also the choice of using "first-year" or mass-charge balance methods. Atoms and the periodic table - a six-chapter first-year level treatment of basic quantum theory, atomic spectra, electron configurations, chemical periodicity and the organization of the periodic table.

Introduction to the electronic structure of atoms and molecules - a well-organized series of pages which extend into chemical bonding.

Alfred Bader, McMaster U. Primer on Quantum Theory of the Atom - A set of in-frequently asked questions in the form of a quantum catechism. Atomic orbital visualization - see the The Orbitron: What is an orbital? The Mystery of Matter: Search for the Elements - This PBS video " is an exciting three-part series about one of the great adventures in the history of science: All about chemical bonding Steve Lower, SFU - this part site provides in-depth coverage of everything you need to know about molecular structure and bonding at the General Chemistry level.

Includes separate sections on polar covalence, VESPR, hybrid orbitals, molecular orbitals, coordination complexes and metals.

Models of chemical bonding - Do chemical bonds really exist? Nobody has ever "seen" one, so the best we can do is construct models. Here is a brief summary of those you should know about.

Covalent, ionic, or what? Coming to terms with covalent, ionic, and metallic bonding, and with mixtures thereof. Guaranteed to give you more insight to this than your textbook does! The electron-tunneling model of chemical bonding How can those electron-dot diagrams showing shared electrons happily sitting between the nuclei be consistent with the principle that opposite charges attract?

The model described here is the simplest one that really explains bonding, but you are unlikely to find it in any textbook! All about Electrochemistry - An in-depth, comprehensive treatment Steve Lower. Baird of Brown Univ. Includes numerous examples of application of kinetic molecular theory and a section on real gases.

Part of the Chem1 Virtual Textbook. Interactions between molecular units - this tutorial for first-year students looks at ionic-, van der Waals attractions, and the universal repulsive force, and how these lead to potential energy curves. Chemical Kinetics and Dynamics - An introduction to rates of reaction, rate laws, half-life, activation energy, the Arrhenius equation, and reaction mechanisms. Kinetics Explorer - an introduction to the study of chemical kinetics based on the exploration of dynamic phenomena.

Includes some good simulations. Online kinetics simulator from Gary Bertrand. The mole concept, calculations based on formulas and equations - these three chapters of the Chem1 Virtual Textbook provide in-depth treatment at an elementary level. Atomic, molecular and formula masses or "weights" - a nice tutorial, with built-in quiz, for beginning students. Balancing Chemical Equations - this ChemTeam site provides numerous links and drills.

The fall of the electron. How to predict the direction of oxidation-reduction reactions. Discussion of the activity series of the elements and of oxidation-reduction in metabolism. ChemTeam lessons on oxidation-reduction.

This Lawrence Berkeley National Laboratory site allows you to explore the world of fundamental particles and forces and then to investigate the experimental evidence and techniques. What few people realized — and the Curies were reluctant to admit — was the great harm this radioactive element could do.

For periodic table T-shirts, neckties, etc. Eric Scerri, author of The Periodic Table: The Periodic Table of Videos - This is not just another periodic table, but a huge resource that has expanded to include more than videos, mostly quite short. At its simplest, you just click on an element, and watch a two-minute video that describes the element and its uses. There is also a larger series of " Molecular Videos " that describes different chemical substances and their uses — all designed to convey the fascination of Chemistry.

Chinese periodic tables - Yes, there are such things! The Photographic Periodic Table of the Elements - the home page features photographs of or related to the elements, but it includes "many thousands of pages of text, stories, pictures, and data" by Theodore Gray. Periodic Table mnemonic song -. Periodic Table of Poetry "Chemistry and poetry together as never before. If gems like this fascinate you, have a look at this site, which is all about the origins of the element names, not just in English, but in 97 different languages.

Periodic Table of Haiku - for those who find elements lyrical. WebElements Sheffield, UK The elements in this online periodic table are linked to an extensive variety of chemical and physical data as well as background, crystallographic, nuclear, electronic, biological and geological information.

You can ever hear how the Brits prounounce the name of the element! How to avoid telling lies with numbers. Provides an understandable, in-depth explanation with many examples. Lower, Chem1 Virtual Textbook. It uses examples of nanotechnology and advanced materials to explore science and engineering concepts mainly at the college level, but there are also sections for K There are links to movies, lab experiments, kits including Lego nanobricks and instructional materials.

Ionic and ion-derived solids - a detailed look at alkali halide energetics and structures, and extended structures. Introduction to crystals - how the external forms of crystals relate to their internal structures. Cover the empirical laws of crystals, lattices and unit cells, Miller indices, and factors affecting growth habits. Cubic crystal lattices and close packing - the origins of long-range order in solids. Face-centered and body-centered structures.

Exploring Materials Engineering - links to a variety of sites relating to materials and polymer science. BuckyBalls Buckminsterfullerenes, those soccer-ball-like carbon structures. This Nanotechnology Now site has a good overview of nanotubes and Buckyballs and many links. The outstanding site Macrogalleria covers the structures and properties of polymers in an uncommonly engaging way.

Lower, Simon Fraser University. Energy, enthalpy, and the First Law - a nice set of tutorials from Purdue U. The biggest, most powerful, most general idea in all of science.

A lively, non-mathematical exposition of the way that entropy and activation energy battle it out in the world as we know it. By Frank Lambert of Occidental College. An alternative version , directed to non-science students and adults, is also available.

AP Exams are in May, but there are other dates to keep in mind. Preparing for the Exam. Are you ready to test your best? Know the rules before you take your AP Exam. View your AP Exam scores online. Understand your options for reporting your official scores. You could earn an award for your AP scores. Most colleges in the U. See what your scores mean at colleges around the world.

AP Around the World. AP opens doors at colleges and universities worldwide. Course Overview What makes this course interesting? Work in groups to think analytically about problems, identify experimental questions, and design experiments to answer those questions Engage in hands-on laboratory investigation to learn chemical concepts through direct experience and observations. End of Career Areas.

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