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the study of relationship between measurable quantities, such as mass and volume, and the number of atoms in chemical reaction


the unit used to count numbers of atoms, molecules, or formula units of substances

avagadro constant

6.02x10 to the 23 in one mole

molar mass

the mass of one mole of a pure substance

molecular mass

the mass in atomic mass units of one molecule of a covalent compounds

formula mass

the mass in atomic mass units of formula unit of an ionic compound

molar volume

the volume that a mole of a gas occupies at a pressure of one atmosphere and a temp of 0 degrees C

empirical formula

the formula of a compound having the smallest whole-number ratio of atoms in the compound

ideal gas law

the relationship among the pressure, volume, temp, and number of particles in a gas

theoretical yield

is the amount of product of a chemical reaction predicted by stoichiometry

actual yield

what you get-generally less than what was predicted

chemical formula

tells the elements of the compound

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