Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Avogadro_constant> ?p ?o }
- Avogadro_constant abstract "In chemistry and physics, the Avogadro constant is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole. Thus, it is the proportionality factor that relates the molar mass of a compound to the mass of a sample. Avogadro's constant, often designated with the symbol NA or L, has the value 7023602214085700001♠6.022140857(74)×1023 mol−1 in the International System of Units (SI).Previous definitions of chemical quantity involved Avogadro's number, a historical term closely related to the Avogadro constant, but defined differently: Avogadro's number was initially defined by Jean Baptiste Perrin as the number of atoms in one gram-molecule of atomic hydrogen, meaning one gram of hydrogen. This number is also known as Loschmidt constant in German literature. The constant was later redefined as the number of atoms in 12 grams of the isotope carbon-12 (12C), and still later generalized to relate amounts of a substance to their molecular weight. For instance, to a first approximation, 1 gram of hydrogen element (H), having the atomic (mass) number 1, has 7023602200000000001♠6.022×1023 hydrogen atoms. Similarly, 12 grams of 12C, with the mass number 12 (atomic number 6), has the same number of carbon atoms, 7023602200000000001♠6.022×1023. Avogadro's number is a dimensionless quantity, and has the same numerical value of the Avogadro constant given in base units. In contrast, the Avogadro constant has the dimension of reciprocal amount of substance.Revisions in the base set of SI units necessitated redefinitions of the concepts of chemical quantity. Avogadro's number, and its definition, was deprecated in favor of the Avogadro constant and its definition. Changes in the SI units are proposed to fix the value of the constant to exactly 6.02214X×1023 when it is expressed in the unit mol−1, in which an \"X\" at the end of a number means one or more final digits yet to be agreed upon.".
- Avogadro_constant thumbnail Amedeo_Avogadro2.jpg?width=300.
- Avogadro_constant wikiPageExternalLink A00543.html.
- Avogadro_constant wikiPageExternalLink avogadro.htm.
- Avogadro_constant wikiPageExternalLink abstract;jsessionid=2BF5A65667EEDDCD40A985289CFDDC0B.f01t01?deniedAccessCustomisedMessage=&userIsAuthenticated=false.
- Avogadro_constant wikiPageExternalLink translate?hl=en&us=auto&tl=en&u=https%3A%2F%2Fwww.bibnum.education.fr%2Fchimie%2Ftheorie-chimique%2Fles-deux-hypotheses-d-avogadro-en-1811.
- Avogadro_constant wikiPageExternalLink www.acpo.csiro.au.
- Avogadro_constant wikiPageExternalLink an-exact-value-for-avogadros-number.
- Avogadro_constant wikiPageExternalLink home.htm.
- Avogadro_constant wikiPageID "41545".
- Avogadro_constant wikiPageLength "24146".
- Avogadro_constant wikiPageOutDegree "104".
- Avogadro_constant wikiPageRevisionID "708311382".
- Avogadro_constant wikiPageWikiLink Amedeo_Avogadro.
- Avogadro_constant wikiPageWikiLink American_Scientist.
- Avogadro_constant wikiPageWikiLink Amount_of_substance.
- Avogadro_constant wikiPageWikiLink Anode.
- Avogadro_constant wikiPageWikiLink Atom.
- Avogadro_constant wikiPageWikiLink Atomic_mass_unit.
- Avogadro_constant wikiPageWikiLink Atomic_units.
- Avogadro_constant wikiPageWikiLink Avogadro_constant.
- Avogadro_constant wikiPageWikiLink Boltzmann_constant.
- Avogadro_constant wikiPageWikiLink Brady_Haran.
- Avogadro_constant wikiPageWikiLink Carbon-12.
- Avogadro_constant wikiPageWikiLink Category:Amount_of_substance.
- Avogadro_constant wikiPageWikiLink Category:Dimensionless_numbers_of_chemistry.
- Avogadro_constant wikiPageWikiLink Category:Physical_constants.
- Avogadro_constant wikiPageWikiLink Chemistry.
- Avogadro_constant wikiPageWikiLink Committee_on_Data_for_Science_and_Technology.
- Avogadro_constant wikiPageWikiLink Compendium_of_Chemical_Terminology.
- Avogadro_constant wikiPageWikiLink Coulometry.
- Avogadro_constant wikiPageWikiLink Density.
- Avogadro_constant wikiPageWikiLink Dimensional_analysis.
- Avogadro_constant wikiPageWikiLink Dimensionless_quantity.
- Avogadro_constant wikiPageWikiLink Electric_charge.
- Avogadro_constant wikiPageWikiLink Electric_current.
- Avogadro_constant wikiPageWikiLink Electrolysis.
- Avogadro_constant wikiPageWikiLink Electron.
- Avogadro_constant wikiPageWikiLink Elementary_charge.
- Avogadro_constant wikiPageWikiLink Faraday_constant.
- Avogadro_constant wikiPageWikiLink Faradays_laws_of_electrolysis.
- Avogadro_constant wikiPageWikiLink Fine-structure_constant.
- Avogadro_constant wikiPageWikiLink Gas_constant.
- Avogadro_constant wikiPageWikiLink German_language.
- Avogadro_constant wikiPageWikiLink Gram.
- Avogadro_constant wikiPageWikiLink Hydrogen.
- Avogadro_constant wikiPageWikiLink Ideal_gas.
- Avogadro_constant wikiPageWikiLink International_System_of_Units.
- Avogadro_constant wikiPageWikiLink International_Union_of_Pure_and_Applied_Chemistry.
- Avogadro_constant wikiPageWikiLink Isotope.
- Avogadro_constant wikiPageWikiLink Isotope_analysis.
- Avogadro_constant wikiPageWikiLink Jean_Baptiste_Perrin.
- Avogadro_constant wikiPageWikiLink Johann_Josef_Loschmidt.
- Avogadro_constant wikiPageWikiLink Kilogram.
- Avogadro_constant wikiPageWikiLink Loschmidt_constant.
- Avogadro_constant wikiPageWikiLink Mass.
- Avogadro_constant wikiPageWikiLink Michael_Faraday.
- Avogadro_constant wikiPageWikiLink Miller_index.
- Avogadro_constant wikiPageWikiLink Molar_mass.
- Avogadro_constant wikiPageWikiLink Molar_mass_constant.
- Avogadro_constant wikiPageWikiLink Molar_volume.
- Avogadro_constant wikiPageWikiLink Mole_(unit).
- Avogadro_constant wikiPageWikiLink Mole_Day.
- Avogadro_constant wikiPageWikiLink Molecule.
- Avogadro_constant wikiPageWikiLink National_Institute_of_Standards_and_Technology.
- Avogadro_constant wikiPageWikiLink Nobel_Prize_in_Physics.
- Avogadro_constant wikiPageWikiLink Nuclide.
- Avogadro_constant wikiPageWikiLink Number_density.
- Avogadro_constant wikiPageWikiLink Order_of_approximation.
- Avogadro_constant wikiPageWikiLink Oxygen.
- Avogadro_constant wikiPageWikiLink Particle_number.
- Avogadro_constant wikiPageWikiLink Physical_constant.
- Avogadro_constant wikiPageWikiLink Physics.
- Avogadro_constant wikiPageWikiLink Planck_constant.
- Avogadro_constant wikiPageWikiLink Pressure.
- Avogadro_constant wikiPageWikiLink Relative_atomic_mass.
- Avogadro_constant wikiPageWikiLink Robert_Andrews_Millikan.
- Avogadro_constant wikiPageWikiLink Rydberg_constant.
- Avogadro_constant wikiPageWikiLink SI_base_unit.
- Avogadro_constant wikiPageWikiLink Silicon.
- Avogadro_constant wikiPageWikiLink Silver.
- Avogadro_constant wikiPageWikiLink Speed_of_light.
- Avogadro_constant wikiPageWikiLink Thermodynamic_temperature.
- Avogadro_constant wikiPageWikiLink Units_of_measurement.
- Avogadro_constant wikiPageWikiLink Watt_balance.
- Avogadro_constant wikiPageWikiLink X-ray_crystallography.
- Avogadro_constant wikiPageWikiLink File:Amedeo_Avogadro2.jpg.
- Avogadro_constant wikiPageWikiLink File:Silicon-unit-cell-labelled-3D-balls.png.
- Avogadro_constant wikiPageWikiLink File:Silicon_sphere_for_Avogadro_project.jpg.
- Avogadro_constant wikiPageWikiLinkText "".
- Avogadro_constant wikiPageWikiLinkText "Avogadro constant".
- Avogadro_constant wikiPageWikiLinkText "Avogadro constant".
- Avogadro_constant wikiPageWikiLinkText "Avogadro constant#International Avogadro Coordination".
- Avogadro_constant wikiPageWikiLinkText "Avogadro project".
- Avogadro_constant wikiPageWikiLinkText "Avogadro's constant".
- Avogadro_constant wikiPageWikiLinkText "Avogadro's number".
- Avogadro_constant wikiPageWikiLinkText "Avogadro’s number".
- Avogadro_constant wikiPageWikiLinkText "See below".
- Avogadro_constant wikiPageWikiLinkText "smallest possible unit of a chemical substance".
- Avogadro_constant wikiPageUsesTemplate Template:Bots.