Empirical Formulae¶
EF by Percentage Composition¶
- chemlib.chemistry.empirical_formula_by_percent_comp(**kwargs)¶
Get the empirical formula given the percentage compositions of all elements in the compound.
- Parameters
kwargs – The percentage compositions of elements in the compound
(<Element symbol> = <Percentage Composition> ...)- Returns
The empirical formula of the compound.
- Return type
- Raises
ValueError – If the sums of the percentages is not equal to 100.
Get the empirical formula of a compound that is composed of 80.6% C, and 19.4% H by mass:
>>> from chemlib import empirical_formula_by_percent_comp as efbpc
>>> efbpc(C = 80.6, H = 19.4)
'C1H3'
Combustion Analysis¶
- chemlib.chemistry.combustion_analysis(CO2, H2O)¶
Get the empirical formula of a hydrocarbon given the grams of CO2 and grams of H2O formed from its combustion.
- Parameters
CO2 – The grams of carbon dioxide formed as a result of the combustion of the hydrocarbon.
H2O – The grams of water formed as a result of the combustion of the hydrocarbon.
- Returns
The empirical formula of the hydrocarbon.
- Return type
str
A hydrocarbon fuel is fully combusted with 18.214 g of oxygen to yield 23.118 g of carbon dioxide and 4.729 g of water. Find the empirical formula for the hydrocarbon.
>>> from chemlib.chemistry import combustion_analysis
>>> combustion_analysis(23.118, 4.729)
'CH'