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Unit 6

The mole

TermDefinition
Avogadro's number the number of particles in 1 mole (or mole) of a substance.
molar mass the mass in grams of 1 mole of the substance
mole a standard scientific unit for measuring large quantities of very small entities such as atoms
molecule The smallest particle of a substance that has all of the physical and chemical properties of that substance.
scientific name A name used by scientists, especially the taxonomic name of an organism that consists of the genus and species.
molecular mass the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.
molecular formula a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
density the quantity of something per unit volume, unit area, or unit length
formula mass the sum of the average atomic masses of each atom represented in the chemical formula
percent composition Tells you by mass what percent of each element is present in a compound.
empirical formula the chemical formula of a compound that gives the proportions (ratios) of the elements present in the compound but not the actual numbers or arrangement of atoms.
atomic mass the average mass of the atoms of an element measured in atomic mass unit
Created by: sm382171
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