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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.
Assessing Students' Conceptual Understanding of Solubility EquilibriumAndrés Raviolo A problem about solubility equilibrium is presented as a resource for the evaluation of students; it involves macroscopic, microscopic, and symbolic levels of representation, and allows one to assess whether students have acquired an adequate conceptual understanding of the phenomenon. Raviolo, Andrés. J. Chem. Educ.2001, 78, 629.
Kinetic-Molecular Theory |
Equilibrium |
Precipitation / Solubility
The Ksp-Solubility ConundrumRoy W. Clark and Judith M. Bonicamp The authors sought to find those cases of partly soluble substances for which simple calculations such as Ksp=S2, and Ksp=4S3 can realistically be used for computing solubility from Ksp and the reverse calculation. Empirical solubility data are compared with solubilities calculated from reliable Ksp values that have been adjusted for activity coefficients. A table of 18 substances is suggested for textbook use. Clark, Roy W.; Bonicamp, Judith M. J. Chem. Educ.1998, 75, 1182.
The Common-Ion EffectEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Precipitation / Solubility
Solubility and Molecular StructureEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
