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Reactions, Microscale: Precipitation Here we show two precipitation reactions under a microscope. They are potassium dichromate crystal with silver nitrate and potassium iodide with lead nitrate.
Precipitation / Solubility |
Reactions
Reaction, Microscale: Potassium Dichromate with Silver Nitrate A crystal of potassium dichromate is carefully combined with a solution of silver nitrate under a microscope. The reaction takes some time, so it is shown in a series of seven sequential videos. To see the entire reaction you need to play all seven.
Determining the Solubility Product of Fe(OH)3: An Equilibrium Study with Environmental SignificanceMichelle Meighan, Joseph MacNeil, and Renee Falconer This study explores the environmental impact of acidic mine drainage by investigating the relationship between pH and the aqueous solubility of heavy metals. Students precipitate Fe(OH)3 from acidic FeCl3 and NaOH and use the concentrations of ferric and hydroxide ionsdetermined through pH and flame spectroscopyto calculate the Ksp of Fe(OH)3. Meighan, Michelle; MacNeil, Joseph; Falconer, Renee. J. Chem. Educ.2008, 85, 254.
Acids / Bases |
Aqueous Solution Chemistry |
Equilibrium |
Precipitation / Solubility |
Spectroscopy
The Chemistry of Swimming Pool MaintenanceCarl Salter and David L. Langhus This paper examines the key ideas behind swimming pool chemistry -- the central importance of pH and its effect on chlorine sanitation and calcium carbonate solubility. The paper also reviews the analytical procedures and common practices used to monitor and control pool chemistry or correct problems. Salter, Carl; Langhus, David L. J. Chem. Educ.2007, 84, 1124.
Acids / Bases |
Applications of Chemistry |
Aqueous Solution Chemistry |
Dyes / Pigments |
pH |
Photochemistry |
Precipitation / Solubility |
Water / Water Chemistry
Solubility Rules: Three Suggestions for Improved UnderstandingBob Blake Many general chemistry textbooks have errors or omissions in their rules for predicting solubility that the author highlights and attempts to correct. In addition, it is proposed that the following changes be made to the discussion of solubility so that students and teachers can have a greater understanding of solubility. Blake, Bob. J. Chem. Educ.2003, 80, 1348.
Solubility and Molecular StructureEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
