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प्रश्न
Calculate:
The mass of oxygen in 2.2 litres of CO2 at STP.
उत्तर
Mass of oxygen in 22.4 litres = 32 g (molar mass)
∴ mass of oxygen in 2.2 litres = `(32 xx 2.2)/22.4`
= 3.14 g
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