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  4. The relative number of atoms of elements, 'X' and 'Y' in a compound is 0.25 and 0.5. The empirical formula of compound is

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Q. The relative number of atoms of elements, $'X'$ and $'Y'$ in a compound is $0.25$ and $0.5$. The empirical formula of compound is

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Solution:

Relative no. of moles of $'X' = \frac {0.25}{N_{A}} = 0.25 $ and
$'Y' = \frac{0.5}{N_{A}} = 0.5 \quad$ [ where,$N_{A}$ atom $ = 1$ mole]
Mole ratio of $'X' = 0.25/0.25=1$
Mole ratio of $'Y' = 0.5/0.25 = 2$
Empirical formula $ =XY_{2}$