equivalent weights

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Definition of equivalent weights in English English dictionary: plural form of equivalent weight
equivalent weight: The atomic weight of an element or radical divided by its valence; the molecular weight of a compound divided by its combining power in a specific reaction
The equivalent weight of an element or compound is that weight equivalent in reactive power to one atomic weight of hydrogen.
equivalent weight: The weight of a substance that will combine with or replace one mole of hydrogen or one-half mole of oxygen. The equivalent weight is equal to the atomic weight divided by the valence. or combining weight Quantity of an element that exactly reacts with (equals the combining value of) 1 g of hydrogen, 8 g of oxygen, or a corresponding amount of any other element. An element's equivalent weight is its atomic weight divided by its valence. In general, for oxidation-reduction, including electrolysis, the equivalent weight is the weight associated with the loss or gain of 6.02 10^23 electrons (Avogadro's number) or 96,500 coulombs of electric charge; this is also the molecular weight divided by the number of electrons lost or gained. The equivalent weight of a substance with several valences differs depending on the number of electrons transferred in the given reaction. The number of equivalent weights of any substance dissolved in one litre of solution is called the solution's normality (N). See also stoichiometry

equivalent weights

Hyphenation

e·qui·va·lent weights

îkwîvılınt weyts

/əˈkwəvələnt ˈwāts/ /ɪˈkwɪvələnt ˈweɪts/

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