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Other Resources: 44 results
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
Equations and Mass Relationships in Biology-Ecological (Biological) Stoichiometry  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Stoichiometry |
Photosynthesis
Isotopes  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Isotopes
Isotopes in Astronomy  Robert Hetue
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Isotopes
Further Modes of Decay  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Isotopes
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
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
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
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
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
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
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
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
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
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
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
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
The Wave Model for Light and Electrons  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nuclear / Radiochemistry |
Photosynthesis
Photosynthesis  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Photosynthesis |
Plant 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
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
Plants-ACS Science for Kids  American Chemical Society
ACS Science for Kids activities exploring the properties and chemistry of plants.
Plant Chemistry |
Natural Products |
Photosynthesis |
Transport Properties
The World's Food Supply  
Volume 03, issue 09 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Plant Chemistry |
Photosynthesis |
Proteins / Peptides |
Carbohydrates |
Lipids |
Nutrition
Atomic Structure and Isotopes  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Isotopes |
Atomic Properties / Structure
Average Atomic Weights and Tracking Migrating Songbirds  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Isotopes
Tracing Fast Food Beef to Confined Animal Feeding Operations  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Isotopes
Uses of Artificial Isotopes  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Isotopes |
Applications of Chemistry
Atomic Scale Paleontology  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Geochemistry |
Isotopes
Oxygen Isotopes and the Origin of the Planets  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Astrochemistry |
Isotopes
ifoods-Eat Isotopes to Live Longer  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Nutrition |
Isotopes
Detection of Performance-Enhancing Drugs (Doping) in Sports  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Bioanalytical Chemistry |
Isotopes
Discovery of Isotopes and Invention of the Mass Spectrograph  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Isotopes |
Mass Spectrometry
Isotope Fingerprinting  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure |
Forensic Chemistry |
Isotopes
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
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