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Acid-Base Titrations and Animation Videos in this group show titrations of various acids with sodium hydroxide as well as molecular reactions during titration.
Acids_and_Bases : IonizationSteps (20 Variations) Citric acid (which is a triprotic acid) has the following structure: Which of the following equations corresponds to the first ionization step of the acid?
A Web-Based Interactive Module to Teach Acid–Base Principles of Drug ActionMaria A. Hernandez and Jolanta Czerwinska Describes interactive compressed video teleconferencing as the distance learning format for an entry-level doctor of pharmacy program. Hernandez, Maria A.; Czerwinska, Jolanta. J. Chem. Educ.2008, 85, 1704.
Acids / Bases |
Drugs / Pharmaceuticals
Picric AcidJay A. Young Safe handling and laboratory use of picric acid is discussed. Young, Jay A. J. Chem. Educ.2008, 85, 492.
Acids / Bases |
Laboratory Management
Dynamic Reaction Figures: An Integrative Vehicle for Understanding Chemical ReactionsEmeric Schultz Describes the dynamic reaction figure, a flexible learning tool that can be used to balance chemical equations, predict the results of potential reactions, present the underlying mechanism of reactions, and solve quantitative problems in a number of areas. Schultz, Emeric. J. Chem. Educ.2008, 85, 386.
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
Buffer SolutionsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Acids / Bases |
Aqueous Solution Chemistry
Introduction of Aquatic Chemistry in General Chemistry Curriculum;Spreadsheet Calculation ApproachesChulsung 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.
