Determine the molecular formula of a gaseous hydrocarbon if the mass fraction of carbon in it is 80%

Determine the molecular formula of a gaseous hydrocarbon if the mass fraction of carbon in it is 80% and the mass fraction of hydrogen is 20%. The relative density of this gas for hydrogen is 15.

The molar mass of this hydrocarbon is = 30, the ratio of carbon to hydrogen is found through 80/12: 20/1 = 1: 3, only ethane is suitable for this ratio.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.