Volume of the 10 g of gas X is 5.6 L at NTP. What will be the molecular weight of X ?

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Mole Concept and Calculation

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5.6 L volume is occupied by = 10 g
22.4 L volume will be occupied by
$= \frac{10}{5 .6} \times 22 .4 g of gas x$
∵ 22.4 L volume is occupied by g molecular mass of a gas.
∴ Molecular weight of gas X = 40 g