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- Equivalent_(chemistry) abstract "The Equivalent (symbol: Eq), was an archaic unit used in chemistry and the biological sciences in the era before chemical formulas and equations were known. It represented the quantity of a substance which reacted exactly with (or was equivalent to) an arbitrarily fixed quantity of another substance in a particular reaction. As knowledge increased, the theoretical basis for these 'chemical equivalents' became understood and the need for a common standard using the concept of Equivalent weights developed. The equivalent weight of an element is the gram atomic weight divided by its valence. The equivalent can also be formally defined through the amount of substance which will either:react with or supply one mole of hydrogen ions (H+) in an acid–base reaction; orreact with or supply one mole of electrons in a redox reaction.Given this definition, an equivalent may also be defined as the number of moles of a given ion in a solution. So, if 1 mol of NaCl and 1 mol of CaCl2 are dissolved in a solution, there is 1 Eq Na, 1 Eq Ca, and 3 Eq Cl in that solution.The mass of one equivalent of a substance is called its equivalent weight.A historical definition, used especially for the chemical elements, describes an equivalent as the amount of a substance that will react with 1 g (0.035 oz) of hydrogen, or with 8 g (0.28 oz) of oxygen, or with 35.5 g (1.25 oz) of chlorine, or displaces any of the three.In practice, the amount of a substance in equivalents often has a very small magnitude, so it is frequently described in terms of milliequivalents (meq or mEq), the prefix milli denoting that the measure has been multiplied by 1000. Very often, the measure is used in terms of milliequivalents of solute per litre of solvent (or milliNormal, where meq/L = mN). This is especially common for measurement of compounds in biological fluids; for instance, the healthy level of potassium in the blood of a human is defined between 3.5 and 5.0 meq/L.A certain amount of univalent ions provides the same amount of equivalents while the same amount of divalent ions provides twice the amount of equivalents. For example, 1 mmol of Na+ is equal 1 meq, while 1 mmol of Ca++ is equal 2 meq.".
- Equivalent_(chemistry) wikiPageExternalLink index.html.
- Equivalent_(chemistry) wikiPageID "30875016".
- Equivalent_(chemistry) wikiPageLength "3255".
- Equivalent_(chemistry) wikiPageOutDegree "24".
- Equivalent_(chemistry) wikiPageRevisionID "707378153".
- Equivalent_(chemistry) wikiPageWikiLink Acid–base_reaction.
- Equivalent_(chemistry) wikiPageWikiLink Biology.
- Equivalent_(chemistry) wikiPageWikiLink Blood.
- Equivalent_(chemistry) wikiPageWikiLink Category:Stoichiometry.
- Equivalent_(chemistry) wikiPageWikiLink Category:Units_of_amount_of_substance.
- Equivalent_(chemistry) wikiPageWikiLink Chemical_element.
- Equivalent_(chemistry) wikiPageWikiLink Chemistry.
- Equivalent_(chemistry) wikiPageWikiLink Chlorine.
- Equivalent_(chemistry) wikiPageWikiLink Concentration.
- Equivalent_(chemistry) wikiPageWikiLink Electron.
- Equivalent_(chemistry) wikiPageWikiLink Equivalent_weight.
- Equivalent_(chemistry) wikiPageWikiLink Human.
- Equivalent_(chemistry) wikiPageWikiLink Hydrogen.
- Equivalent_(chemistry) wikiPageWikiLink Hydrogen_ion.
- Equivalent_(chemistry) wikiPageWikiLink Litre.
- Equivalent_(chemistry) wikiPageWikiLink Mass.
- Equivalent_(chemistry) wikiPageWikiLink Milli-.
- Equivalent_(chemistry) wikiPageWikiLink Mole_(unit).
- Equivalent_(chemistry) wikiPageWikiLink Oxygen.
- Equivalent_(chemistry) wikiPageWikiLink Potassium.
- Equivalent_(chemistry) wikiPageWikiLink Redox.
- Equivalent_(chemistry) wikiPageWikiLink Solution.
- Equivalent_(chemistry) wikiPageWikiLink Solvent.
- Equivalent_(chemistry) wikiPageWikiLink Units_of_measurement.
- Equivalent_(chemistry) wikiPageWikiLinkText "Equivalent (chemistry)".
- Equivalent_(chemistry) wikiPageWikiLinkText "equivalent".
- Equivalent_(chemistry) wikiPageWikiLinkText "equivalents".
- Equivalent_(chemistry) wikiPageWikiLinkText "mEq".
- Equivalent_(chemistry) wikiPageWikiLinkText "mEq/L".
- Equivalent_(chemistry) wikiPageWikiLinkText "milliequivalent".
- Equivalent_(chemistry) wikiPageWikiLinkText "milliequivalents".
- Equivalent_(chemistry) wikiPageUsesTemplate Template:Convert.
- Equivalent_(chemistry) wikiPageUsesTemplate Template:Reflist.
- Equivalent_(chemistry) subject Category:Stoichiometry.
- Equivalent_(chemistry) subject Category:Units_of_amount_of_substance.
- Equivalent_(chemistry) hypernym Unit.
- Equivalent_(chemistry) type Organisation.
- Equivalent_(chemistry) type Unit.
- Equivalent_(chemistry) comment "The Equivalent (symbol: Eq), was an archaic unit used in chemistry and the biological sciences in the era before chemical formulas and equations were known. It represented the quantity of a substance which reacted exactly with (or was equivalent to) an arbitrarily fixed quantity of another substance in a particular reaction.".
- Equivalent_(chemistry) label "Equivalent (chemistry)".
- Equivalent_(chemistry) sameAs Q36384.
- Equivalent_(chemistry) sameAs مكافئ_(كيمياء).
- Equivalent_(chemistry) sameAs Еквивалент.
- Equivalent_(chemistry) sameAs Equivalent_(química).
- Equivalent_(chemistry) sameAs Val_(Einheit).
- Equivalent_(chemistry) sameAs Equivalente.
- Equivalent_(chemistry) sameAs Ekvivalent_(keemia).
- Equivalent_(chemistry) sameAs اکیوالان.
- Equivalent_(chemistry) sameAs Équivalent_(chimie).
- Equivalent_(chemistry) sameAs Jafngild_þyngd.
- Equivalent_(chemistry) sameAs Equivalente.
- Equivalent_(chemistry) sameAs 化学当量.
- Equivalent_(chemistry) sameAs Val_(eenheid).
- Equivalent_(chemistry) sameAs Equivalente.
- Equivalent_(chemistry) sameAs m.03vy7t.
- Equivalent_(chemistry) sameAs Echivalent_chimic.
- Equivalent_(chemistry) sameAs Эквивалент_вещества.
- Equivalent_(chemistry) sameAs Ekvivalent_(enhet).
- Equivalent_(chemistry) sameAs Eşdeğer_ağırlık.
- Equivalent_(chemistry) sameAs Хімічний_еквівалент.
- Equivalent_(chemistry) sameAs Đương_lượng_(hoá_học).
- Equivalent_(chemistry) sameAs Q36384.
- Equivalent_(chemistry) sameAs 化學當量.
- Equivalent_(chemistry) wasDerivedFrom Equivalent_(chemistry)?oldid=707378153.
- Equivalent_(chemistry) isPrimaryTopicOf Equivalent_(chemistry).