The empirical formula of ethylene, a fruit-ripening gas, is CH . The molecular mass of ethylene...

Question

Question

The empirical formula of ethylene, a fruit-ripening gas, is CH . The molecular mass of ethylene is 28 amu. What is the molecu

Answer 1

Answer #1

Molecular formulae of a compound = n * Empirical formulae of the compound

Also, Molecular formulae mass of a compound = n * Empirical formulae mass of the compound

where n = integer

Mass of CH2 unit = 14 amu

Therefore, 28 amu = n * 14 amu

n = 28/ 14 = 2

Hence molecular formula of ethylene gas = 2 *(CH2) = C2H4

Answer 2

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