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a) Calculate the mass of 112 L CO2 gas k...

a) Calculate the mass of 112 L `CO_2` gas kept at STP (molecular mass = 44).
b) How many molecules of `CO_2` are present in it?

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a) No. of moles in 112L `CO_2` = `(112L/22.4L)` = 5 mole
Mass of the gas = No of moles X GMM = `5 xx 44` = 220g
b) No. of molecules = ` 5 xx 6.022 x 10^23`
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