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10 Cards in this Set

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  • Back

Ar (Relative atomic mass)

The measure of the mass of one atom of an element

Mr (Relative molecular mass)

The sum ofthe relative atomic masses


The amount that contains the same number of units as the number of carbon atoms in 12 grams of carbon-12

Avogadro constant

Number of atoms in exactly 12 grams of carbon-12 is 6.02 x 10 to the power of 23

Mole (mol)

Mass (g) over Mr (g/mol)

Concentration (mol/dm cube)

Mole (mol) over volume (dm cube)

Volume (dm cube)

Mole (mol) times molar volume (24 mol/dm cube)

Molecular Formula

Mr over empirical mass times empirical formula

% Yield

Actual Mass Obtained OVER calculated mass TIMES 100%

% Purity of a product

Mass of the pure product OVER Mass of the impure product obtained TIMES 100