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Empirical and Molecular Formula

A compound is...

Question

A compound is formed by 24 g of X and 64 g of oxygen. If atomic mass of X = 12 and O = 16, calculate the simplest formula for the compound.

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Solution

mass of oxygen = 64g.

Atomic mass of oxygen given as 16. Thus, atoms of oxygen = = 4.

mass of X = 24g.

Atomic mass of X given as 12. X is therefore carbon. Number of carbon atoms = = 2.

The ratio between them is 2: 4 = 1: 2

The simplest atomic formula is, therefore, $C O_{2}$

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