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Paramagnetism The paramagnetic properties of oxygen are demonstrated using a strong magnet, and compared with diamagnetic nitrogen.
Magnetic Properties |
Molecular Properties / Structure
Paramagnetism: Compounds Vials of a number of compounds (NaCl, MnSO4, FeSO4, CoCl2, NiSO4, ZnSO4, K4Fe(CN)6, [Co(NH3)6]Cl3, [Ni(NH3)6]Cl2, and H2O) are hung from a thread. When a magnet is brought near, some of the vials are attracted.
Magnetic Properties |
Atomic Properties / Structure
Paramagnetism: Oxidation States of Manganese Manganese(III) oxide, with 4 unpaired electrons per Mn atom, is more strongly attracted to a magnet than is manganese(IV) oxide, with only 3 unpaired electrons per Mn atom. Potassium permanganate, a compound of Mn(VII), has no unpaired electrons and is not attracted to a magnet.
Real-World Topics: Medicinal ChemistryArrietta Clauss Instructors often look for real-world topics that interest students when designing labs and preparing lectures. The chemistry associated with drugs is a fertile area, and the archives of the Journal can be a resource for interesting drug-related activities to enhance student learning. Clauss, Arrietta. J. Chem. Educ.2008, 85, 1657.
Enrichment / Review Materials |
Drugs / Pharmaceuticals |
Medicinal Chemistry |
Applications of Chemistry
Molecular Models of Polymers Used in Sports EquipmentWilliam F. Coleman The Featured Molecules this month are a number of monomers and their associated polymers used in making equipment for a variety of high-impact sports. The molecules provide students with an introduction to an important area of applied chemistry and also enable them to examine complex structures using the models they have seen applied to small molecules. Coleman, William F. J. Chem. Educ.2008, 85, 1456.
Molecular Modeling |
Molecular Properties / Structure |
Applications of Chemistry
Today's Science for Tomorrow's ScientistsCaroline Pharr Today's Science for Tomorrow's Scientists (TSTS) is an interactive Web site containing modular instructional units that introduce current science research through online tutorials. Research groups can use images, movies, and other interactive functions to share their work with others, particularly students at the elementary, middle, and high school levels. Pharr, Caroline. J. Chem. Educ.2008, 85, 1453.
ElectricityAmerican Chemical Society ACS Science for Kids activities that explore the properties of electricity.a
Electrochemistry |
Magnetic Properties |
Metals |
Applications of Chemistry
Characteristics of MaterialsAmerican 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
Paramagnetism (GCMP)David M. Whisnant Paramagnetism: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will begin by observing the magnetism of three manganese compounds. These compounds have been placed in capsules, which will be pulled toward a magnet if the compound is paramagnetic. 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.
