Formula unit — A formula unit in chemistry is the empirical formula of an ionic or covalent network solid compound used as an independent entity for stoichiometric calculations. It is the lowest whole number ratio of ions represented in an ionic compound.… … Wikipedia
formula unit — Chem. (of an ionic compound that does not form molecules, as most salts) the chemical formula with the least number of elements out of the set of empirical formulas having the same proportion of ions as elements: NaCl is the formula unit for the… … Useful english dictionary
formula unit — formulinis vienetas statusas T sritis Standartizacija ir metrologija apibrėžtis Realiai egzistuojanti ar sąlyginė medžiagos dalelė, atitinkanti medžiagos formulės atomų visumą. atitikmenys: angl. formula unit vok. Formeleinheit, f rus. формульная … Penkiakalbis aiškinamasis metrologijos terminų žodynas
formula unit — formulinis vienetas statusas T sritis chemija apibrėžtis Realiai egzistuojanti ar sąlyginė medžiagos dalelė, atitinkanti medžiagos formulės atomų visumą. atitikmenys: angl. formula unit rus. формульная единица … Chemijos terminų aiškinamasis žodynas
formula weight — Chem. 1. (of a molecule) See molecular weight. 2. (of an ionic compound that does not form molecules) the sum of the atomic weights of the atoms of the formula unit. * * * Sum of the atomic weights of all atoms in a chemical formula. The term is… … Universalium
formula weight — Chem. 1. (of a molecule) See molecular weight. 2. (of an ionic compound that does not form molecules) the sum of the atomic weights of the atoms of the formula unit … Useful english dictionary
Formula Three — Formula Three, also called Formula 3 or F3, is a class of open wheel formula racing. The various championships held in Europe, Australia, South America, and Asia form an important step for many prospective Formula One drivers. Formula Three has… … Wikipedia
Formula Ford — is a single seater, open wheel class in motorsport which exists in some form in many countries around the world. It is an entry level series to motor racing, in which in the past many drivers aspired to one day reach Formula One (today karting is … Wikipedia
Formula Super Vee — was a type of open wheel motor created to act as a platform for the promotion of VW products, playing much the same role in the 1970s as formulae such as Formula Renault play today. The idea for Formula Super Vee is generally attributed to Josef… … Wikipedia
Formula 5000 — (or F5000) was an auto racing formula that ran different series in various regions around the world from 1968 to 1982. It was originally intended as a low cost series aimed at open wheel racing cars that no longer fit into any particular formula … Wikipedia