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stoichiometry |
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stoichiometryDetermination of the proportions (by weight or number of molecules) in which elements or compounds react with one another. The rules for determining stoichiometric relationships are based on the laws of conservation (see conservation law) of mass and energy and the law of combining weights (see equivalent weight) or volumes. The tools used are chemical formulas, chemical equations, atomic weights, and molecular weights or formula weights. stoichiometry [‚stȯi·kē′äm·ə·trē] (physical chemistry) The numerical relationship of elements and compounds as reactants and products in chemical reactions. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Gasoline engines presently employ three-way catalytic converters that offer NOx reduction rates as high as 99%, but this performance is possible only at the stoichiometric air-fuel ratio. What this means is that there is a stoichiometric deficiency of isocyanate groups compared to hydroxyl groups in the overall reaction. The stoichiometric amount of manganese needed to simply combine with the sulfur is 1. |
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