| Other Resources: 68 results |
Chemical & Physical Change American Chemical Society
Everything you see and touch has the ability to change. Sometimes substances change to form new substances. This is called a chemical change. Other times substances change but keep the same identity. This is called a physical change. Try these activities to learn more about chemical and physical change.
Acids / Bases |
Reactions |
Water / Water Chemistry |
Solutions / Solvents |
Consumer Chemistry
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Characteristics of Materials American Chemical Society
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Industrial Chemistry |
Physical Properties |
Reactions |
Consumer Chemistry |
Gases |
Carbohydrates |
Proteins / Peptides |
Crystals / Crystallography |
Water / Water Chemistry |
Plant Chemistry |
Dyes / Pigments |
Lipids |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography |
Magnetic Properties |
Metals |
Polymerization |
Solutions / Solvents |
Descriptive Chemistry |
Food Science
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Sunscreens William F. Coleman
Reinforcing the "Heath and Wellness" theme of National Chemistry Week 2004, the featured molecules for this month are all found in commercial sunscreens, or in the synthesis of sunscreen materials. The paper by Stabile and Dicks introduces students of organic chemistry to the synthesis of cinnamate esters used in sunscreen products. Several of the papers referenced by those authors, most notably a paper by Doris Kimbrough (J. Chem. Educ. 1997, 74, 51?53), present the structures of additional sunscreen components. Although the details of the synthesis are beyond the scope of most introductory courses, these molecules present an excellent opportunity for introducing students to the absorption of radiation that is far more relevant to their lives than the line spectra of hydrogen and other atoms. Such a discussion could be extended to include more delocalized dyes such as those frequently studied in physical chemistry courses as a test of particle-in-a-box models, and students could be asked about those molecules as sunscreens, which raises an interesting intersection between aesthetics and spectroscopy.
Consumer Chemistry
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Acids (GCMP) David M. Whisnant
Acids: this is a resource in the collection "General Chemistry Multimedia Problems". We will observe the reaction of sodium bicarbonate with three acid solutions. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
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Acids and Salts (GCMP) David M. Whisnant
Acids and Salts: this is a resource in the collection "General Chemistry Multimedia Problems". This problem will explore a few properties of common acids and their salts. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
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Oxides (GCMP) David M. Whisnant
Oxides: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will explore the properties of the oxides of a few elements. We will add samples of the oxides to universal indicator solution and learn about the acid-base character of the oxides. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
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Strong Acids (GCMP) David M. Whisnant
Strong Acids: this is a resource in the collection "General Chemistry Multimedia Problems". This problem will explore the properties of common strong acids. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases
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Acids and Bases (Netorials) Rachel Bain, Mithra Biekmohamadi, Liana Lamont, Mike Miller, Rebecca Ottosen, John Todd, and David Shaw
Acids and Bases: this is a resource in the collection "Netorials". In this module there is an introduction to the chemical properties of acids and bases. Afterwards, the sections include topics such as Molecular Structures of Acids and Bases, Ionization constants, properties of salts, buffers and Lewis theory of Acids and Bases. The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Thermodynamics, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Acids / Bases
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Universal Algorithm for Acid-Base Equilibrium Calculations Pavol Tarapèík
These Microsoft Excel workbooks facilitate the calculation of the equilibrium composition of simple to complex acid-base systems. Three workbooks are available: 1. pH-mix calculates the equilibrium composition for any mixture of protolytes. 2. pH-titr calculates and presents titration curves. 3. pH-titrd calculates and presents titration curves with derivative curves included. The workbooks require only basic knowledge about Excel and almost no calculation abilities. However, they do require a description of chemical properties of the system components. Thus they allow students to concentrate on chemistry skills rather than laborious algebra and arithmetic.
Acids / Bases
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Acids, Bases, Salts, and Ionization
Volume 04, issue 06 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Acids / Bases
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Acids, Bases and Salts
Volume 05, issue 06 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Acids / Bases
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ChemPaths 104 M Apr 4 John W. Moore
Today in Chem 104:
* Lecture: Acids and Bases
* Reading:
Kotz: Ch. 17, Sec. 1-2
Moore: Ch. 16, Sec. 1-2
* Homework #9 due by 11:55 PM F Apr 8
* Quiz in second discussion section this week
* Lab this week is #10, Chemical Equilibrium and Thermodynamics
Acids / Bases
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ChemPaths 104 F Apr 8 John W. Moore
Today in Chem 104:
* Lecture: Problem-Solving Session
* Homework #9 due by 11:55 PM tonight
Acids / Bases
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ChemPaths 104 W Apr 13 John W. Moore
Today in Chem 104:
* Lecture: Structure and Acid-Base Strength; Buffers
* Reading:
Kotz: Ch. 17, Sec. 8, 10
Moore: Ch. 16, Sec.6; Ch. 17, Sec. 1,3
* Homework #10 due by 11:55 PM F Apr 15
* Quiz in second discussion section this week
* Lab this week is #6, Acid and Base Solutions
Acids / Bases
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Acid-Base Reactions Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
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Acids Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
|
Bases Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
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Strong Acids and Bases Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
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Conjugate Acid-Base Pairs Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
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Polyprotic Acids and Bases Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases
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Acids and Bases American Chemical Society
ACS Science for Kids activities exploring acids and bases.
Acids / Bases
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Molecular Models of Candy Components William F. Coleman
This month's Featured Molecules come from the paper "A Spoonful of C12H22O11 Makes the Chemistry Go Down: Candy Motivations in the High School Chemistry Classroom" by Fanny K Ennever on using candy to illustrate various principles. They include sucrose and the invert sugar that results from the hydrolysis of sucrose. Students should look for structural similarities between sucrose and the hydrolysis products glucose and fructose, and verify that all three are indeed hydrates of carbon. They should also inspect the models to see whether the position of the substituents in the five and six membered rings are the same in the sucrose and in the hydrolysis products. Also included are two esters important in fruit flavoring of candies. Flavor and aroma are inexorably intertwined in the taste experience and no single compound is responsible for that experience. Methyl cinnamate, included here, is one of over 100 esters, and over 300 compounds, involved in the taste of strawberries (1). Isoamyl acetate is a major component of the taste of bananas. Lastly, chocolate, perhaps nothing else need be said. There is a great deal of confusion in the popular press and on the internet between theobromine, found in cocoa beans, and caffeine. Both molecules are included here and students should easily see why the two might be confused. Consequently there are many exaggerated claims about caffeine in chocolate. An interesting assignment would be for teams of students to find reliable data on the physiological effects of these similar molecules, and to find good analyses on the actual level of caffeine in cocoa beans, versus the amount added in the candy production process, if any.
Consumer Chemistry |
Molecular Modeling
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The World's Clothing Supply
Volume 03, issue 15 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Plant Chemistry
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Synthetic Products
Volume 03, issue 16 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Materials Science |
Consumer Chemistry
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How the World Is Housed
Volume 03, issue 18 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Industrial Chemistry
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Lights
Volume 03, issue 33 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Industrial Chemistry
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The World's Clothing Supply
Volume 04, issue 14 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Plant Chemistry
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How the World Is Housed
Volume 04, issue 17 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Industrial Chemistry
|
Synthetic Chemistry
Volume 05, issue 14 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Materials Science |
Consumer Chemistry
|
The World's Clothing Supply
Volume 05, issue 15 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Plant Chemistry
|
How the World is Housed
Volume 05, issue 17 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Consumer Chemistry |
Industrial Chemistry
|
Lava Lamps Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Consumer Chemistry |
Physical Properties
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Domestic Energy Storage in Phase Change Materials (PCMs) Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Thermodynamics |
Consumer Chemistry
|
Matches Tim Wendorff
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Descriptive Chemistry |
Consumer Chemistry
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Cooking Efficiencies of Pots and Pans Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Thermodynamics |
Consumer Chemistry
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Secondary Protein Structure with Cultural Connections Garrett Schwarzman
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides |
Consumer Chemistry
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The Nature of Electromagnetic Radiation in Everyday Life Robert Hetue
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nuclear / Radiochemistry |
Consumer Chemistry
|
Gold Jewelry Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Physical Properties |
Consumer Chemistry
|
Weak acids in foods - pH and beyond Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
pH |
Nutrition
|
The pH of Solutions of Weak Bases in Foods Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Nutrition |
pH
|
Polyprotic acids and bases in Foods Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Nutrition
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Conjugate Acid-Base Pairs and pH in Foods - From cleaning and disinfection to microbial nutrition and protein modification Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
pH |
Nutrition
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Buffer solutions and the stability of food additives Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Equilibrium |
Nutrition
|
Buffer solutions and the production of food ingredients Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Equilibrium |
Nutrition
|
The effect of polyols on the pH of buffer solutions in foods Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Equilibrium |
Nutrition
|
Indicators in foods Sofia Erazo
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Natural Products
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ChemPaths 104 W Apr 6 John W. Moore
Today in Chem 104:
* Lecture: Bronsted Acids and Bases
* Reading:
Kotz: Ch. 17, Sec. 3-5
Moore: Ch. 16, Sec. 3-5
* Homework #9 due by 11:55 PM F Apr 8
* Quiz in second discussion section this week
* Lab this week is #10, Chemical Equilibrium and Thermodynamics
Brønsted-Lowry Acids / Bases
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ChemPaths 104 M Apr 11 John W. Moore
Today in Chem 104:
* Lecture: pH; Acid-Base Equilibria; Ionization
* Reading:
Kotz: Ch. 17, Sec. 6-7
Moore: Ch. 16, Sec. 7-8
* Homework #10 due by 11:55 PM F Apr 15
* Quiz in second discussion section this week
* Lab this week is #6, Acid and Base Solutions
pH |
Acids / Bases |
Equilibrium
|
Amphiprotic Species Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Amino Acids
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Lewis Acids and Bases Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Lewis Acids / Bases
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The pH of Solutions of Weak Acids Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Acids / Bases
|
The pH of Solutions of Weak Bases Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Equilibrium |
Acids / Bases
|
Things We Use
Volume 03, issue 01 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Metallurgy |
Consumer Chemistry |
Industrial Chemistry
|
Ammonia (GCMP) David M. Whisnant
Ammonia fountain: this is a resource in the collection "General Chemistry Multimedia Problems". In an ammonia fountain, a flask is filled with ammonia gas. A tube from the flask extends into a pan of water that contains phenolphthalein. When a rubber bulb full of water is squeezed, the water squirts into the flask. Water from the pan then is pushed into the flask and the indicator changes color. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases |
Aqueous Solution Chemistry
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Buffer Solutions Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Aqueous Solution Chemistry
|
The Chlorine Family
Volume 03, issue 04 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Industrial Chemistry |
Consumer Chemistry |
Medicinal Chemistry
|
Galvanic Cells in Everyday Life Piotr
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Electrolytic / Galvanic Cells / Potentials |
Consumer Chemistry
|
Storage Batteries Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Consumer Chemistry |
Electrolytic / Galvanic Cells / Potentials
|
Building American Chemical Society
ACS Science for Kids activities exploring the chemistry behind building many everyday objects and structures.
Industrial Chemistry |
Physical Properties |
Reactions |
Consumer Chemistry
|
ChemPaths 104 F Apr 15 John W. Moore
Today in Chem 104:
* Lecture: Titration; Lewis Acids and Bases
* Reading:
Kotz: Ch. 18, Sec. 3; Ch. 17, Sec. 9
Moore: Ch. 17, Sec. 2; Ch. 16, Sec.
* Homework #10 due by 11:55 PM tonight
Lewis Acids / Bases |
Titration / Volumetric Analysis
|
Principal Species and pH Robert M. Hanson
Calculates concentrations of principal species in solutions using JavaScript. You can specify whether "1st-year" methods or mass-charge balance methods are used in the calculations. Solutions can be chosen from the included set or you can design your own.
Acids / Bases |
Titration / Volumetric Analysis |
pH |
Solutions / Solvents
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Connected Chemistry Mike Stieff
Connected Chemistry, a novel learning environment for teaching chemistry, is appropriate for use in both high school and undergraduate chemistry classrooms. Connected Chemistry comprises several molecular simulations designed to enable instructors to teach chemistry using the perspective of emergent phenomena. That is, it allows students to see observed macro-level chemical phenomena, like many other scientific phenomena, as resultant from the interactions of many individual agents on a micro-level. This perspective is especially appropriate to the study of chemistry where the interactions between multitudes of molecules on the atomic level give rise to the macro-level concepts that students study in the classroom. Connected Chemistry comprises molecular simulations embedded in the NetLogo modeling software (1). The collection contains several predesigned simulations of closed chemical systems to teach specific chemistry concepts. Currently, Connected Chemistry contains models for teaching Brønsted Lowry acid base theory, enzyme kinetics, radical polymerization, buffer chemistry, kinetics, chemical equilibrium, and crystallization. Instructors and students can individually tailor the predesigned simulations or generate new simulations as they are needed in the context of a particular lesson, classroom, or department.
Acids / Bases |
Gases |
Kinetics |
Nuclear / Radiochemistry |
pH |
Titration / Volumetric Analysis |
Polymerization |
Equilibrium |
Catalysis
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Introduction of Aquatic Chemistry in General Chemistry Curriculum;Spreadsheet Calculation Approaches Chulsung Kim
Fundamental aquatic chemistry concepts may be introduced in general chemistry classes by computing ionization fractions and buffer intensity of aqueous phase carbonate systems. This Excel spreadsheet may used to build graphic presentations of a titration curve, distribution diagram, and buffer intensity as a function of pH. Accompanying activities are designed to enhance the concepts of acid-base equilibrium through exploring the relationship between pKa/pKb, pH of the solution, ionization fractions, and buffer intensity, and to exercise students graphing skills.
Acids / Bases |
Aqueous Solution Chemistry |
pH |
Titration / Volumetric Analysis |
Water / Water Chemistry |
Equilibrium
|
Netorials
The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Acids / Bases |
Stoichiometry |
Proteins / Peptides |
Enzymes |
Carbohydrates |
Nucleic Acids / DNA / RNA |
Lipids |
Oxidation / Reduction |
Noncovalent Interactions
|
Air-Solids, Liquids & Gases American Chemical Society
ACS Science for Kids activities explore the properties of gases.
Atmospheric Chemistry |
Acids / Bases |
Reactions |
Applications of Chemistry |
Water / Water Chemistry |
Gases
|
General Chemistry Multimedia Problems David M. Whisnant
General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids / Bases |
Atomic Spectroscopy |
Calorimetry / Thermochemistry |
Isotopes |
Magnetic Properties |
Phases / Phase Transitions / Diagrams |
Surface Science |
Thermodynamics |
Equilibrium |
Oxidation / Reduction
|
Food American Chemical Society
ACS Science for Kids activities that explore the chemical properties of foods.
Plant Chemistry |
Dyes / Pigments |
Lipids |
Proteins / Peptides |
Carbohydrates |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography
|
Interactive Spreadsheets William F. Coleman
Interactive Excel spreadsheets display hard-to-understand concepts in statistics, quantum mechanics, physics, and more. Parameters are adjusted by clicking on easy-to-use buttons or by using numeric input boxes. Graphs, tables, and/or figures are then created reflecting the change in parameters.
Acids / Bases |
Crystal Field / Ligand Field Theory |
Group Theory / Symmetry |
Quantum Chemistry |
Statistical Mechanics |
Titration / Volumetric Analysis |
Coordination Compounds |
Enrichment / Review Materials
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