Two hydrocarbons contain 85.72% carbon and their relative density for hydrogen under normal conditions is 21 and 28.
| December 10, 2020 | education
Two hydrocarbons contain 85.72% carbon and their relative density for hydrogen under normal conditions is 21 and 28. Write down the structural and molecular formulas of all isomers of these substances, name them.
molecular weight = 21 * 2 = 42 g / mol
m (C): m (H) = 0.8572: 0.1428 = 24: 4
hence the simplest formula C2H4
two isomers have this formula: butane and 2-methylpropane
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