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@wikipedia


Normalised measure of the total amount

LaTeX Math Inline
bodyN
  of the constitutive particles (molecules/atoms) in a given sample of substance:

LaTeX Math Block
anchor1
alignmentleft
\nu = \frac{N}{N_A}

where

 

LaTeX Math Inline
bodyN_A
 = 6.022140758(62) · 1023  mol−1 

Avogadro constant




Alternative equations:

LaTeX Math Block
anchornu_m
alignmentleft
\nu = \frac{m}{M}
LaTeX Math Block
anchornu_V
alignmentleft
\nu = \frac{V}{V_m}

LaTeX Math Inline
bodym

mass of a substance with amount

LaTeX Math Inline
body\nu

LaTeX Math Inline
bodyV

substance volume

LaTeX Math Inline
bodyM

molar mass of a given substance

LaTeX Math Inline
bodyV_m

substance molar volume
Expand
titleDerivation
LaTeX Math Block
alignmentleft
\nu = \frac{N}{N_A} = \frac{ m_u \cdot N }{m_u \cdot N_A} = \frac{m}{M}

where

LaTeX Math Inline
bodym_u

molecular mass of a given substance
Expand
titleDerivation
LaTeX Math Block
alignmentleft
\nu = \frac{m}{M} = \frac{\rho \cdot V}{M}  = \frac{V}{V_m}

where

LaTeX Math Inline
body\rho

densityof a given substance


See Also


Natural Science / Chemistry / Chemical Substance