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Molecular Properties / Structure |
Stoichiometry
Stoichiometry : FormulaFromComp (8 Variations)
Lactic acid is the substance that makes your muscles burn when you've been exercising hard. Lactic acid is composed of 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen by weight. If it has a molar mass of 90 g/mol, what is its molecular formula?
Helping Students Assess the Relative Importance of Different Intermolecular InteractionsPaul G. Jasien A semi-quantitative model has been developed to estimate the relative effects of dispersion, dipoledipole interactions, and H-bonding on the normal boiling points for a series of simple, straight-chain organic compounds. Application of this model may be useful in addressing student misconceptions related to the additivity of intermolecular interactions. Jasien, Paul G. J. Chem. Educ.2008, 85, 1222.
Chemometrics |
Molecular Properties / Structure |
Noncovalent Interactions |
Physical Properties
Determination of the Formula of a Hydrate: A Greener AlternativeMarc A. Klingshirn, Allison F. Wyatt, Robert M. Hanson, and Gary O. Spessard This article describes how the principles of green chemistry were applied to a first-semester, general chemistry courses, specifically in relation to the determination of the formula of a copper hydrate salt that changes color when dehydrated and is easily rehydrated with steam. Klingshirn, Marc A.; Wyatt, Allison F.; Hanson, Robert M.; Spessard, Gary O. J. Chem. Educ.2008, 85, 819.
Gravimetric Analysis |
Green Chemistry |
Solids |
Stoichiometry
Concept Maps for General Chemistry Boyd L. Earl Two concept maps have been developed to represent the organization of the material in a first-semester general chemistry course. By providing these maps to students and referring to them in class, it is hoped that the instructor can assist students in maintaining a grasp of the "big picture" during the progress of the course. Earl, Boyd L. J. Chem. Educ.2007, 84, 1788.
