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Fundamental Physical Constants
Name and Symbol Value
atomic mass unit (amu) 1.6605402 × 10 −27 kg
Avogadro’s number 6.0221367 × 10 23 mol −1
Boltzmann’s constant ( k ) 1.380658 × 10 −23 J K −1
charge-to-mass ratio for electron ( e/m e ) 1.75881962 × 10 11 C kg −1
electron charge ( e ) 1.60217733 × 10 −19 C
electron rest mass ( m e ) 9.1093897 × 10 −31 kg
Faraday’s constant ( F ) 9.6485309 × 10 4 C mol −1
gas constant ( R ) 8.205784 × 10 −2 L atm mol −1 K −1 = 8.314510 J mol −1 K −1
molar volume of an ideal gas, 1 atm, 0 °C 22.41409 L mol –1
molar volume of an ideal gas, 1 bar, 0 °C 22.71108 L mol –1
neutron rest mass ( m n ) 1.6749274 × 10 −27 kg
Planck’s constant ( h ) 6.6260755 × 10 −34 J s
proton rest mass ( m p ) 1.6726231 × 10 −27 kg
Rydberg constant (R) 1.0973731534 × 10 7 m −1 = 2.1798736 × 10 −18 J
speed of light (in vacuum) ( c ) 2.99792458 × 10 8 m s −1

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Source:  OpenStax, Chemistry. OpenStax CNX. May 20, 2015 Download for free at http://legacy.cnx.org/content/col11760/1.9
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