chemlib.chemistry.Compound
Instantiate a chemlib.Compound object with the formula of the compound.
>>> from chemlib import Compound >>> water = Compound("H2O") >>> water.formula 'H₂O₁'
chemlib.chemistry.Compound.occurences
A dictionary containing the frequencies of the constituent elements in the compound.
>>> water.occurences {'H': 2, 'O': 1}
>>> water.molar_mass() 18.01
>>> water.percentage_by_mass('H') #Percent of Hydrogen in Compound 11.183 >>> water.percentage_by_mass('O') #Percent of Oxygen in Compound 88.834
Get the amount of moles and molecules of water given 2 grams of water.
>>> water.get_amounts(grams = 2) {'Compound': 'H₂O₁', 'Grams': 2, 'Moles': 0.111, 'Molecules': 6.685e+22}
Get the amount of grams and molecules of water given 2 moles of water.
>>> water.get_amounts(moles = 2) {'Compound': 'H₂O₁', 'Grams': 36.02, 'Moles': 2, 'Molecules': 1.204e+24}
Get the amount of moles and grams of water given 2e+24 molecules of water.
>>> water.get_amounts(molecules = 2e+24) {'Compound': 'H₂O₁', 'Grams': 59.834, 'Moles': 3.3223, 'Molecules': 2e+24}