Equation Sheet

# Equation Sheet - Physical Constants No = 6.02214199 1023...

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Physical Constants Avogadro's number N o = 6.02214199 × 10 23 /mol atomic mass unit amu = 1.66053872 × 10 -27 kg electron rest mass m e = 9.109388188 × 10 -31 kg neutron rest mass m n = 1.67492716 × 10 -27 kg proton rest mass m p = 1.67262158 × 10 -27 kg gas constant R = kN o = 8.314472 J/mole K R=0.08205746 L atm/mole K acceleration of gravity g = 9.80665 m/s 2 Bohr radius a o = 5.291772083 × 10 -11 m Boltzmann constant k = 1.3806503 × 10 -23 J/K electron charge e = 1.602176462 × 10 -19 C Faraday constant F = eN o = 96,485.3145 J/mole Planck's constant h = 6.62606876 × 10 -34 J s h = 1.05457160 × 10 -34 J s Rydberg constant R = 10,973,731.5368459 /m R hc = 2.17987190 × 10 -18 J speed of light (vacuum) c = 2.99792458 × 10 8 m/s permittivity of vacuum ε o = 8.85419 × 10 -12 J -1 C 2 m -1 gravitational constant G = 6.67260 × 10 -11 m 3 /kg s 2 Useful Conversion Factors Mass and weight 1 pound = 453.59237 g Length 1 in = 2.54 cm 1 mile = 5280 ft = 1.609344 km 1 yd = 0.9144 m
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