ocr: IUnit Constants Conductance quantum GO 7.748091 x 10- S Electric permictmty)constant e0 8.85419x 10-12 F/m Elementary charge e 1.60218X 10-19 C Gravitational constant 0 6.6732x1 10-11 N-m-/kg? Magnetic permeabilityconstant mo 1.25664x 10: H/m Magnetic nlux quantum FO 2.06783X 10-15 Wb Planck constant a 6.62607x 10- J-s Speed oflight in vacuum 2.99793X 108 m/s Speed of sound at: STP 331 m/s Avogadro's Number 6.02214X 1023 Gas Constant A 0.08206 Latm/K/mole Boltzmann 1.38066> x 10-23 J/K Electron Mass 9.10939x 10-1 kg Proton Mass 1.67493X 10-27 kg Neutron Mass 1.67262x10-2 kg