# Constants

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1 atm = 101.1 kPa

1.000 calorie = 4.184 Joules

1 Calorie = 1000 calories

760 torr = 1 atm

760 mm Hg = 1 atm

Atomic mass unit: 1.00 amu = 1.67 x kg

Avogadro's number: 6.02 x particles/mole

Planck's constant: 6.23 x

R = 0.0821 or 8.314

Standard Temperature and Pressure (STP): temperature = 273 K and pressure = 1.00 atm

Mass | Charge | |
---|---|---|

Proton |
1.67 x kg | +1 |

Neutron |
1.67 x kg | 0 |

Electron |
9.11 x kg | -1 |