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66 relations: Amount of substance, Atom, Atomic mass, Atomic theory, Avogadro constant, Calcium, Charles Frédéric Gerhardt, Chemical formula, Chemist, Coherence (units of measurement), Colligative properties, Committee on Data for Science and Technology, Dalton's law, Decimetre, Dimensionless quantity, Einstein (unit), Electric charge, Electron, Equivalent weight, Faraday constant, General Conference on Weights and Measures, German language, Henri Victor Regnault, Hydrogen, Ideal gas law, Imperial units, International Bureau of Weights and Measures, International System of Units, International Union of Pure and Applied Chemistry, Ion, Isotope, Isotopes of calcium, Jöns Jacob Berzelius, John Dalton, Joseph Proust, Karlsruhe Congress, Law of definite proportions, Litre, Mass spectrometry, Merriam-Webster, Metal, Metre, Metric prefix, Molar concentration, Molar mass, Molar volume, Mole Day, Mole fraction, Molecular mass, Molecule, ..., Oxford English Dictionary, Oxygen, Oxygen-16, Pound (mass), Pure and Applied Chemistry, Second, SI base unit, Solution, Standard atomic weight, Stanislao Cannizzaro, Stoichiometry, The Perse School, Thermodynamic system, Unified atomic mass unit, United States customary units, Wilhelm Ostwald. Expand index (16 more) »
Amount of substance
Amount of substance (symbol for the quantity is 'n') is a standard-defined quantity that measures the size of an ensemble of elementary entities, such as atoms, molecules, electrons, and other particles.
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Atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
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Atomic mass
The atomic mass (ma) is the mass of an atom.
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Atomic theory
In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms.
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Avogadro constant
In chemistry and physics, the Avogadro constant (named after scientist Amedeo Avogadro) is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole.
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Calcium
Calcium is a chemical element with symbol Ca and atomic number 20.
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Charles Frédéric Gerhardt
Charles Frédéric Gerhardt (21 August 1816 – 19 August 1856) was a French chemist.
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Chemical formula
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
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Chemist
A chemist (from Greek chēm (ía) alchemy; replacing chymist from Medieval Latin alchimista) is a scientist trained in the study of chemistry.
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Coherence (units of measurement)
A coherent system of units is based on a system of quantities in such a way that the equations between the numerical values expressed in coherent units have exactly the same form, including numerical factors, as the corresponding equations between the quantities.
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Colligative properties
In chemistry, colligative properties are properties of solutions that depend on the ratio of the number of solute particles to the number of solvent molecules in a solution, and not on the nature of the chemical species present.
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Committee on Data for Science and Technology
The Committee on Data for Science and Technology (CODATA) was established in 1966 as an interdisciplinary committee of the International Council for Science.
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Dalton's law
In chemistry and physics, Dalton's law (also called Dalton's law of partial pressures) states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.
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Decimetre
The decimetre (SI symbol dm) is a unit of length in the metric system, equal to one tenth of a metre (the International System of Units base unit of length), ten centimetres or 1/0.254 (approximately 3.93700787) inches.
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Dimensionless quantity
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned.
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Einstein (unit)
An einstein is a unit defined as the energy in one mole of photons.
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Electric charge
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
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Electron
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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Equivalent weight
Equivalent weight (also known as gram equivalent) is a term which has been used in several contexts in chemistry.
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Faraday constant
The Faraday constant, denoted by the symbol and sometimes stylized as ℱ, is named after Michael Faraday.
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General Conference on Weights and Measures
The General Conference on Weights and Measures (Conférence générale des poids et mesures – CGPM) is the supreme authority of the International Bureau of Weights and Measures (Bureau international des poids et mesures – BIPM), the inter-governmental organization established in 1875 under the terms of the Metre Convention (Convention du Mètre) through which Member States act together on matters related to measurement science and measurement standards.
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German language
German (Deutsch) is a West Germanic language that is mainly spoken in Central Europe.
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Henri Victor Regnault
Prof Henri Victor Regnault FRS HFRSE (21 July 1810 – 19 January 1878) was a French chemist and physicist best known for his careful measurements of the thermal properties of gases.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Ideal gas law
The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas.
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Imperial units
The system of imperial units or the imperial system (also known as British Imperial or Exchequer Standards of 1825) is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced.
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International Bureau of Weights and Measures
The International Bureau of Weights and Measures (Bureau international des poids et mesures) is an intergovernmental organization established by the Metre Convention, through which Member States act together on matters related to measurement science and measurement standards.
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International System of Units
The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.
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International Union of Pure and Applied Chemistry
The International Union of Pure and Applied Chemistry (IUPAC) is an international federation of National Adhering Organizations that represents chemists in individual countries.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Isotope
Isotopes are variants of a particular chemical element which differ in neutron number.
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Isotopes of calcium
Calcium (20Ca) has 24 isotopes, from 34Ca to 57Ca.
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Jöns Jacob Berzelius
Baron Jöns Jacob Berzelius (20 August 1779 – 7 August 1848), named by himself and contemporary society as Jacob Berzelius, was a Swedish chemist.
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John Dalton
John Dalton FRS (6 September 1766 – 27 July 1844) was an English chemist, physicist, and meteorologist.
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Joseph Proust
Joseph Louis Proust (26 September 1754 – 5 July 1826) was a French chemist.
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Karlsruhe Congress
The Karlsruhe Congress was an international meeting of chemists held in Karlsruhe, Germany from 3 to 5 September 1860.
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Law of definite proportions
In chemistry, the law of definite proportion, sometimes called Proust's law or the law of definite composition, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.
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Litre
The litre (SI spelling) or liter (American spelling) (symbols L or l, sometimes abbreviated ltr) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre. A cubic decimetre (or litre) occupies a volume of 10 cm×10 cm×10 cm (see figure) and is thus equal to one-thousandth of a cubic metre. The original French metric system used the litre as a base unit. The word litre is derived from an older French unit, the litron, whose name came from Greek — where it was a unit of weight, not volume — via Latin, and which equalled approximately 0.831 litres. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI,, p. 124. ("Days" and "hours" are examples of other non-SI units that SI accepts.) although not an SI unit — the SI unit of volume is the cubic metre (m3). The spelling used by the International Bureau of Weights and Measures is "litre", a spelling which is shared by almost all English-speaking countries. The spelling "liter" is predominantly used in American English. One litre of liquid water has a mass of almost exactly one kilogram, because the kilogram was originally defined in 1795 as the mass of one cubic decimetre of water at the temperature of melting ice. Subsequent redefinitions of the metre and kilogram mean that this relationship is no longer exact.
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Mass spectrometry
Mass spectrometry (MS) is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio.
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Merriam-Webster
Merriam–Webster, Incorporated is an American company that publishes reference books which is especially known for its dictionaries.
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Metal
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
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Metre
The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).
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Metric prefix
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit.
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Molar concentration
Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.
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Molar mass
In chemistry, the molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance.
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Molar volume
The molar volume, symbol Vm, is the volume occupied by one mole of a substance (chemical element or chemical compound) at a given temperature and pressure.
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Mole Day
Mole Day is an unofficial holiday celebrated among chemists, chemistry students and chemistry enthusiasts on October 23, between 6:02 a.m. and 6:02 p.m., making the date 6:02 10/23 in the American style of writing dates.
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Mole fraction
In chemistry, the mole fraction or molar fraction (xi) is defined as the amount of a constituent (expressed in moles), ni, divided by the total amount of all constituents in a mixture (also expressed in moles), ntot: The sum of all the mole fractions is equal to 1: The same concept expressed with a denominator of 100 is the mole percent or molar percentage or molar proportion (mol%).
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Molecular mass
Relative Molecular mass or molecular weight is the mass of a molecule.
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Molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
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Oxford English Dictionary
The Oxford English Dictionary (OED) is the main historical dictionary of the English language, published by the Oxford University Press.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Oxygen-16
Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus.
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Pound (mass)
The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement.
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Pure and Applied Chemistry
Pure and Applied Chemistry (abbreviated Pure Appl. Chem.) is the official journal for the International Union of Pure and Applied Chemistry (IUPAC).
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Second
The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.
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SI base unit
The International System of Units (SI) defines seven units of measure as a basic set from which all other SI units can be derived.
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Solution
In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances.
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Standard atomic weight
The standard atomic weight (Ar, standard, a relative atomic mass) is the atomic weight (Ar) of a chemical element, as appearing and met in the earthly environment.
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Stanislao Cannizzaro
Stanislao Cannizzaro FRS (13 July 1826 – 10 May 1910) was an Italian chemist.
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Stoichiometry
Stoichiometry is the calculation of reactants and products in chemical reactions.
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The Perse School
The Perse Upper School is a fee-charging, academically selective, independent secondary co-educational day school in Cambridge, England.
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Thermodynamic system
A thermodynamic system is the material and radiative content of a macroscopic volume in space, that can be adequately described by thermodynamic state variables such as temperature, entropy, internal energy, and pressure.
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Unified atomic mass unit
The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass).
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United States customary units
United States customary units are a system of measurements commonly used in the United States.
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Wilhelm Ostwald
Friedrich Wilhelm Ostwald (2 September 1853 – 4 April 1932) was a German chemist.
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References
[1] https://en.wikipedia.org/wiki/Mole_(unit)
