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Chem CH12 Section 1
Chemistry CH12 Section 1 Counting Particles of Matter
Term | Definition |
---|---|
Avogadro’s number | the number of things in one mole of a substance |
formula mass | the mass in atomic mass units of one formula unit of an ionic compound |
molar mass | the mass of one mole of a pure substance |
mole | the unit used to count numbers of atoms, molecules, or formula units of substances |
molecular mass | the mass in atomic mass units of one molecule of a covalent compound |
stoichiometry | the study of relationships between measurable quantities, such as mass and volume, and the number of atoms in chemical reactions |