GLOSSARY

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Synonym: Molar Mass = Molecular Weight

Material property defined as the mass of a given substance (chemical element or chemical compound) contained within one mole of the substance.

It measures as ratio of substance mass 

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bodym
 to amount of substance 
LaTeX Math Inline
body\nu
:

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titleDerivation
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alignmentleft
M = \frac{m}{\nu} =  m  \cdot \frac{N_A}{N} = m_u \cdot N_A

where

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bodyN

number of molecules in a substance of amount 

LaTeX Math Inline
body\nu


SI unit is [ kg/mol ].


The molar mass of a mixture is:

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