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9 Mole

Mole concept

QuestionAnswer
Mole The amount of substance that contains 6 x 10 superscript 23 (Avogadro's constant) particles of that substance.
Molar mass Mass of 1 mole of a substance in grams.
Relative atomic /molecular /formula mass Average mass of one atom, molecule or formula compared with one-twelfth the mass of a carbon-12 isotope. Relative masses are unitless.
Avogadro's law States that equal volumes of all gases, under the same conditions of temperature and pressure, contain the same number of molecules.
Mass of a compound Relative Molecular mass x no. of moles
Mass of an element Relative Atomic mass x no. of moles
Avogadros Number One mole of a compound contains 6 x 10^23 particles of that substance
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