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Glossary of Chemistry Ch. 7

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the number of representative particles contained in one mole of a substance; equal to 6.02x10^-23
Avogadro's number
a formula with the lowest whole number ratio of elements in a compound
empirical formula
the mass of one mole of atoms in a monoatomic element
gram atomic mass
mass of one mole of an ionic compound
gram formula mass
mass of one mole of a molecular substace
gram molecular mass
mass of a mole of any substance
molar mass
volume occupied by 1 mole of a gas at standard temperature and pressure; 22.4 liters
molar volume
the amount of a substance that contains 6.02x10^-23 representative particles of that substance
mole(mol)
percent by mass of each element in a compound
percent composition
smallest unit into which a substance can be broken down without a change in compositition
representative partical
conditions under which the volume of a gas is usually measured
standard temperature and pressure

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