12C,the molar mass of any substance is numerically equivalent to its atomic or formula weight in amu. Per the amu definition, a single12C atom weighs 12 amu (its atomic mass is 12 amu). According to the definition of the mole, 12 g of12C contains 1 mole of12C...
Consistent with its definition as an amount unit, 1 mole of any element contains the same number of atoms as 1 mole of any other element. The masses of 1 mole of different elements, however, are different, since the masses of the individual atoms are drastically different. The molar mass ...
Define chemistry. chemistry synonyms, chemistry pronunciation, chemistry translation, English dictionary definition of chemistry. n. pl. chem·is·tries 1. The science of the composition, structure, properties, and reactions of matter, especially of atom
Define Practical chemistry. Practical chemistry synonyms, Practical chemistry pronunciation, Practical chemistry translation, English dictionary definition of Practical chemistry. that which treats of the modes of manufacturing the products of chemistry
the mole provides a vital link that allows scientists to connect the number ofparticlesin a substance to both the combinedmassof all those particles and the mass of each individual particle. As we’ve seen, the mole concept is useful for so much more than just referring to the amount of ...
This value was named Avogadro’s number (NA), thereby replacing its earlier definition as the number of gas atoms in a cubic centimeter. Comprehension Checkpoint The mole is a unit of measure in the metric system. a. True b. False ...
mole [mōl] (chemistry) An amount of substance of a system which contains as many elementary units as there are atoms of carbon in 0.012 kilogram of the pure nuclide carbon-12; the elementary unit must be specified and may be an atom, molecule, ion, electron, photon, or even a specified...
12 The mole is used extensively in chemistry, why not elsewhere? 14 Why is the mole a unit of measurement? 23 Why is the definition of the mole as it is? 14 What advantages does the mole have over counting large numbers using SI prefixes? 2 A mole of atoms is the number of atom...
In recent years, the definition of mole , the unit of the amount of substance , has changed to have the base units of the International System defined by "explicit-constant" formulations. The old definition, by referring explicitly to both mass and elementary units, suggests that the mole is...
Twitter Google Share on Facebook molecularity Dictionary Thesaurus Medical Wikipedia Related to molecularity:Order of reaction,Rate law [mə‚lek·yə′lar·əd·ē] (physical chemistry) In a chemical reaction, the number of molecules which come together and form the activated complex. ...