Chemistry 5070 · O Level · Formulae

Formulae — practice question

A student combusts $4.8\,\text{g}$ of an element $X$ in excess oxygen. The mass of the oxide formed is $8.0\,\text{g}$. [$A_r: X,\,24;\,O,\,16$]
(main)[1]

What is the empirical formula of the oxide of $X$?

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