conversions.molecular_chemistry

Functions useful for doing molecular chemistry: * molarity_to_normality * moles_to_pressure * moles_to_volume * pressure_and_volume_to_temperature * mass_to_moles * moles_to_molecules

Functions

mass_to_moles(→ float)	Convert mass of a substance to moles.
molarity_to_normality(→ float)	Convert molarity to normality.
moles_to_molecules(→ float)	Convert moles of a substance to total molecules using Avogadro's constant.
moles_to_pressure(→ float)	Convert moles to pressure.
moles_to_volume(→ float)	Convert moles to volume.
pressure_and_volume_to_temperature(→ float)	Convert pressure and volume to temperature.

Module Contents

conversions.molecular_chemistry.mass_to_moles(mass: float, molar_mass: float) → float

Convert mass of a substance to moles.

Mass is taken in grams. Molar mass is taken in grams per mole (g/mol).

Wikipedia reference: https://en.wikipedia.org/wiki/Mole_(unit)

>>> mass_to_moles(36.03, 18.015)
2.0
>>> mass_to_moles(11.0, 44.01)
0.25

conversions.molecular_chemistry.molarity_to_normality(nfactor: int, moles: float, volume: float) → float

Convert molarity to normality.

Volume is taken in litres.

Wikipedia reference: https://en.wikipedia.org/wiki/Equivalent_concentration Wikipedia reference: https://en.wikipedia.org/wiki/Molar_concentration

>>> molarity_to_normality(2, 3.1, 0.31)
20
>>> molarity_to_normality(4, 11.4, 5.7)
8

conversions.molecular_chemistry.moles_to_molecules(moles: float) → float

Convert moles of a substance to total molecules using Avogadro’s constant.

Wikipedia reference: https://en.wikipedia.org/wiki/Avogadro_constant

>>> moles_to_molecules(2)
1.2044e+24
>>> moles_to_molecules(0.5)
3.011e+23

conversions.molecular_chemistry.moles_to_pressure(volume: float, moles: float, temperature: float) → float

Convert moles to pressure.

Ideal gas laws are used. Temperature is taken in kelvin. Volume is taken in litres. Pressure has atm as SI unit.

Wikipedia reference: https://en.wikipedia.org/wiki/Gas_laws Wikipedia reference: https://en.wikipedia.org/wiki/Pressure Wikipedia reference: https://en.wikipedia.org/wiki/Temperature

>>> moles_to_pressure(0.82, 3, 300)
90
>>> moles_to_pressure(8.2, 5, 200)
10

conversions.molecular_chemistry.moles_to_volume(pressure: float, moles: float, temperature: float) → float

Convert moles to volume.

Ideal gas laws are used. Temperature is taken in kelvin. Volume is taken in litres. Pressure has atm as SI unit.

Wikipedia reference: https://en.wikipedia.org/wiki/Gas_laws Wikipedia reference: https://en.wikipedia.org/wiki/Pressure Wikipedia reference: https://en.wikipedia.org/wiki/Temperature

>>> moles_to_volume(0.82, 3, 300)
90
>>> moles_to_volume(8.2, 5, 200)
10

conversions.molecular_chemistry.pressure_and_volume_to_temperature(pressure: float, moles: float, volume: float) → float

Convert pressure and volume to temperature.

Ideal gas laws are used. Temperature is taken in kelvin. Volume is taken in litres. Pressure has atm as SI unit.

Wikipedia reference: https://en.wikipedia.org/wiki/Gas_laws Wikipedia reference: https://en.wikipedia.org/wiki/Pressure Wikipedia reference: https://en.wikipedia.org/wiki/Temperature

>>> pressure_and_volume_to_temperature(0.82, 1, 2)
20
>>> pressure_and_volume_to_temperature(8.2, 5, 3)
60