Mole, standard unit (6.02214076 x 10^23) in chemistry for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. The number of units in a mole also bears the name Avogadro’s number, or Avogadro’s const
(Chemistry) a millionth of a mole Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 Want to thank TFD for its existence?Tell a friend about us, add a link to this page, or ...
mole 5 (mōl) n. Abbr. mol Chemistry In the International System, the base unit used in representing an amount of a substance, equal to the amount of that substance that contains as many atoms, molecules, ions, or other elementary units as the number of atoms in 0.012 kilogram of carbo...
Mass Ratio (kg/kg or parts per)- mass of solute/mass of allotherconstituents in the mixture PPM (parts per million)- a 100 ppm solution is 0.01%. The "parts per" notation, while still in use, has largely been replaced by mole fraction ...
On the definition of the moleThe article discusses the official definition of mole including as the amount of substance of a system in the 14th General Conference of Weights and Measures and its proposed redefinition in the 24th General Conference of Weights and Measures....
The mole is the most recent addition to the set of base units that form the International System of Units, although its pre-cursor the 'gram-molecule', had been in use by both physicists and chemists for more than 120 years. A proposal has been published recently to establish a new defi...
Mole definition: any of various small insectivorous mammals, especially of the family Talpidae, living chiefly underground, and having velvety fur, very small eyes, and strong forefeet. See examples of MOLE used in a sentence.
mole chemistry Print Also known as: gram atom, gram molecular weight, gram molecule, mol Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by worki...
A mole ratio is the ratio between the amounts inmolesof any twocompoundsinvolved in achemical reaction. Mole ratios are usedas conversion factorsbetween products andreactants in many chemistry problems. The mole ratio may be determined by examining the coefficients in front of formulas in a ...
The basic principle is that heat released by the combustion chamber increases the temperature of the water in a measurable way. The temperature change may then be used to calculate the enthalpy change per mole of substance A when substances A and B are reacted. ...