Chemistry Basics: Mole and Avogadro's Concepts

Front

What is a mole?

Back

The amount of a substance that contains 6.02 x 10^23 representative particles of that substance.

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What is a representative particle?

Back

The species present in a substance; usually atoms, molecules, or formula units.

Front

What is Avogadro's number?

Back

The number of representative particles contained in one mole of a substance; equal to 6.02 x 10^23.

Front

What is molar mass?

Back

The mass of one mole of a substance.

Front

What is Avogadro's hypothesis?

Back

Any two samples of gas with an equal number of particles will have the same volume when they are held at the same pressure and temperature.