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  4. The mass of oxygen gas occupy a volume of 11.2 lit at a temperature 27°C and a pressure of 76 cm of mercury in kilogram is (molecular weight of oxygen =32)

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Q. The mass of oxygen gas occupy a volume of 11.2 lit at a temperature $27^{\circ}C$ and a pressure of 76 cm of mercury in kilogram is (molecular weight of oxygen =32)

Thermal Properties of Matter

Solution:

$PV =\frac{ m }{ M } RT$
$11.2 \times 10^{-3} \times 1.01 \times 10^{5}=\frac{ m }{32 \times 10^{-3}} \times 8.314 \times 300$
$m =0.01456$