FUNDAMENTAL CONSTANTS
Name Symbol Magnitude
Avogadro’s number NAV 6.022? 1023 mol^1
Planck’s constant hP 6.626? 10 ^34 J?s
Boltzmann constant kB 1.381? 10 ^23 J?K^1
Gas constant R¼kB?NAV 8.315 J?K^1 ?mol^1
Elementary charge e 1.602? 10 ^19 C
Faraday constant F¼e?NAV 96485 C?mol^1
Permittivity of vacuum e 0 8.854? 10 ^12 C?V^1 ?m^1
Zero of the Celsius scale 273.15 K
Standard acceleration of gravity g 9.807 m?s^2
ATOMIC MASS OF SOME ELEMENTS
Name Symbol
Atomic
number
Atomic mass
kg?kmol^1
Barium Ba 56 137.3
Bromine Br 35 79.9
Calcium Ca 20 40.1
Carbon C 6 12.01
Chlorine Cl 17 35.5
Hydrogen H 1 1.008
Lithium Li 3 6.9
Magnesium Mg 12 24.3
Nitrogen N 7 14.0
Oxygen O 8 16.0
Phosphorus P 15 31.0
Potassium K 19 39.1
Sodium Na 11 23.0
Strontium Sr 38 87.6
Sulfur S 16 32.1
