A Chemist Looks at Hemoglobin Solubility and Sickle-Cell Anemia
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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.
Investigating Students' Ability To Transfer Ideas Learned from Molecular Animations of the Dissolution ProcessResa M. Kelly and Loretta L. Jones This study examines what features of the particulate nature of matter learned from viewing two animations of sodium chloride dissolution students would transfer to their descriptions of the participation of aqueous sodium chloride in a chemical reaction. Kelly, Resa M.; Jones, Loretta L. J. Chem. Educ.2008, 85, 303.
Aqueous Solution Chemistry |
Precipitation / Solubility |
Solutions / Solvents |
Constructivism
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.
Cross-Linking in BiologyRobert Hetue A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Molecular Biology
Solubility and Molecular StructureEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
