Results 221 to 230 of about 115,598 (264)
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Stoichiometry of Coagulation Revisited
Environmental Science & Technology, 2008The roles of particles and natural organic matter (NOM) in determining coagulant (alum) doses in potable water treatment were investigated at two pH conditions (6 and 7). The concentrations of NOM and colloidal silica particles in raw water were systematically varied separately and in combination, and the impacts of these two classes of contaminants on
J Y, Shin, R F, Spinette, C R, O'Melia
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Stoichiometry and food-chain dynamics
Theoretical Population Biology, 2004Traditional models of chemostat systems looking at interactions between predator, prey and nutrients have used only a single currency, such as energy or nitrogen. In reality, growth of autotrophs and heterotrophs may be limited by various elements, e.g. carbon, nitrogen, phosphorous or iron.
Kuijper, L.D.J. +3 more
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Materials Research Bulletin, 1981
Abstract The occurrence of deviations from stoichiometry of the semi-insulator compound HgI2 has been established using a very elaborate chemical analytical procedure. It was found that the molar ratio of I 2 Hg varies from 1.993 to 2.015 (±0.002).
G. Dishon +3 more
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Abstract The occurrence of deviations from stoichiometry of the semi-insulator compound HgI2 has been established using a very elaborate chemical analytical procedure. It was found that the molar ratio of I 2 Hg varies from 1.993 to 2.015 (±0.002).
G. Dishon +3 more
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Journal of Chemical Education, 1999
This experiment determines the stoichiometry of the reaction of a carbonate or hydrogen carbonate and HCl by measuring the pressure of the CO2 produced using a Vernier pressure sensor, Texas Instruments CBL interface, and a TI-82/83 graphing calculator. Various amounts of the carbonate are reacted with a constant amount of HCl.
Catherine L. McCluskey, Charles E. Roser
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This experiment determines the stoichiometry of the reaction of a carbonate or hydrogen carbonate and HCl by measuring the pressure of the CO2 produced using a Vernier pressure sensor, Texas Instruments CBL interface, and a TI-82/83 graphing calculator. Various amounts of the carbonate are reacted with a constant amount of HCl.
Catherine L. McCluskey, Charles E. Roser
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Stoichiometry of the amalgamation reaction
Journal of Dentistry, 1977Abstract Regression analysis of previously published data has been used to illustrate paradoxical deviations from proportionality between the measured volume fractions of the phases of set dental amalgam. Possible sources of error are identified.
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Journal AWWA, 1968
The objectives of this study were to examine the adsorption of coagulants on the colloids present in water and to interpret this adsorption in terms of coagulation and restabilization; and, based upon a consideration of chemical and electrostatic interactions in the destabilization of colloids, to develop a conceptual model relating optimum coagulation
Werner Stumm, Charles R. O'Melia
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The objectives of this study were to examine the adsorption of coagulants on the colloids present in water and to interpret this adsorption in terms of coagulation and restabilization; and, based upon a consideration of chemical and electrostatic interactions in the destabilization of colloids, to develop a conceptual model relating optimum coagulation
Werner Stumm, Charles R. O'Melia
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