Chemistry Final Review

Definition of molar volume

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Terms in this set (55)

Definition of molar volume

Volume occupied by one mole of a gas at standard temperature and pressure

Definition of molar mass

A term used to refer to the mass of a mole of any substance

Definition of atomic mass

The weighted average of the masses of the isotopes in a chemical reaction

Definition of representative particle

The smallest unit into which a substance can be broken down without a change in the composition, usually Atoms, molecules, or ions

Definition of mole

The amount of a substance that contains 6.02×10 to the 23rd representative particles of that substance

Definition of avocados number

The number of representative particles contained in one mole of a substance

Definition of percent composition

The percent by mass of each element in a compound

Definition of STP

The conditions under which the volume of a gas is usually measured, standard temperature is 0°C and standard pressure is 101.3 KPA, or one atmosphere

Definition of empirical formula

A formula with the lowest whole number ratio of elements in a compound

Definition of actual yield

The amount of products that forms when a reaction is carried out in the laboratory