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Crystallization of Supersaturated Sodium Acetate A supersaturated solution of sodium acetate is poured onto one small sodium acetate crystal. Crystals form from the liquid immediately upon contact with the seed crystal. A thermometer shows that the crystallization process is exothermic. A chemical hot pack is shown as an example of a commercially available supersaturated solution.
Precipitation / Solubility |
Solutions / Solvents |
Calorimetry / Thermochemistry
Solutions Reactions and demonstrations exploring the concepts of solutions.
Solutions : FreezePtDepression (20 Variations) It takes 6.86 kg of ethylene glycol (antifreeze) to decrease the freezing point of 6.50 kg of water to -25.0oF (-31.7oC). How much sodium chloride (NaCl) would it take to decrease the freezing point of 6.50 kg of water to -25.0oF? (Assuming all the salt will dissolve in that amount of water.)
Freezing Point of Milk: A Natural Way To Understand Colligative PropertiesMercedes Novo, Belén Reija, and Wajih Al-Soufi Presents a laboratory experiment that illustrates the use of freezing point measurements to control milk quality and determine molecular weight. Novo, Mercedes; Reija, Belén; Al-Soufi, Wajih. J. Chem. Educ.2007, 84, 1673.
Consumer Chemistry |
Food Science |
Natural Products |
Phases / Phase Transitions / Diagrams |
Solutions / Solvents
The Chemical Composition of HoneyDavid W. Ball Explores the complex chemical composition of honey. Ball, David W. J. Chem. Educ.2007, 84, 1643.
SolutionsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solutions / Solvents
Measuring the Composition of a SolutionEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solutions / Solvents
Ideal Solutions: Raoult's LawEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
