Question

What is relation between molecular formula and empirical formula. Show your work with example.

Answer 1

Answer:

Molecular formulas tell you how many atoms of each element are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a compound. If a compound's molecular formula cannot be reduced any more, then the empirical formula is the same as the molecular formula.

Explanation:

eg: molecular formula - c2h6 (ethane )

empirical formula - ch3

2 and 6 are cancelled to 1 and 3 (2x3=6)

Answer 2

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The molecular formula of a compound may be the empirical formula, or it may be a multiple of the empirical formula. For example, the molecular formula of butene, C4H8, shows that each freely existing molecule of butene contains four atoms of carbon and eight atoms of hydrogen. Its empirical formula is CH2.