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9 Videos
17 Journal Articles
Videos: First 3 results
Extraction of Acid with Base  
Water and diethyl ether are shaken in a separatory funnel with a small amount of red indophenol. The non-ionic indophenol remains in the ether layer, coloring it red. Addition of sodium hydroxide converts the indophenol to its blue ionic acid anion which is extracted into the water layer turning it blue.
Acids / Bases |
Precipitation / Solubility
Reactions of Sulfurous Acid  
These demonstrations illustrate the production and effects of sulfur dioxide, a pollutant generated by the burning of sulfur impurities in coal. The sulfurous acid produced by dissolving sulfur dioxide in water is allowed to react with various forms of calcium carbonate found in nature, namely marble, limestone, chalk, and eggshell.
Acids / Bases |
Precipitation / Solubility |
Reactions
Reactions of Nitric Acid  
These demonstrations illustrate the production of nitric acid and its reaction with various forms of calcium carbonate found in nature, namely marble, limestone, chalk, and eggshell.
Acids / Bases |
Precipitation / Solubility |
Reactions
View all 9 results
Journal Articles: First 3 results.
Pedagogies:
Evaluating Solubility of Sparingly Soluble Diprotic Acid Salts  Jean M. Nigretto
The use of logarithmic concentration diagrams as a convenient tool for finding approximate solutions to the pH of solutions containing sparingly soluble diprotic acid salts in pure water; an application of this method based on a series of carbonate salts is presented.
Nigretto, Jean M. J. Chem. Educ. 2001, 78, 631.
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium |
Solutions / Solvents |
Precipitation / Solubility |
pH
A Comparative Study of Microscale and Standard Burets  Mono M. Singh, Cynthia B. McGowan, Zvi Szafran, and R. M. Pike
This paper describes a comparative study of the performance of microscale titrations using 2-mL microscale burets with those using Beral pipets and normal 50- and 10-mL burets. The usefulness of a microburet in general and analytical chemistry is demonstrated by presenting results from acid-base, oxidation-reduction, precipitation, complexometric, and pH titrations.
Singh, Mono M.; McGowan, Cynthia B.; Szafran, Zvi; Pike, Ronald M. J. Chem. Educ. 2000, 77, 625.
Acids / Bases |
Aqueous Solution Chemistry |
Laboratory Equipment / Apparatus |
Microscale Lab |
Quantitative Analysis |
Oxidation / Reduction |
Titration / Volumetric Analysis |
pH |
Precipitation / Solubility
Spreadsheet Techniques for Evaluating the Solubility of Sparingly Soluble Salts of Weak Acids  José L. Guinón, José García-Antón, and Valentín Pérez-Herranz
A spreadsheet of Microsoft Excel for determining the solubility of sparingly soluble salts is described. The chart and worksheet are shown simultaneously on the screen. The worksheet can be used for any salt by merely changing the data for the solubility product constant and ionization constants.
Guinn, Jos L.; Garca-Antn, Jos; Prez-Herranz, Valentn. J. Chem. Educ. 1999, 76, 1157.
Computational Chemistry |
Equilibrium |
Laboratory Computing / Interfacing |
Quantitative Analysis |
Acids / Bases |
Precipitation / Solubility
View all 17 articles