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The density of CO(2)=1.977kmg^(-3) at ST...

The density of `CO_(2)=1.977kmg^(-3)` at STP. Calculate the molecular mass of `CO_2`.

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Verified by Experts

Density of `CO_2 = 1.97Kgm^(-3)`
`PV= n RT`
No of moles `=("Mass")/("Molar mass")`
`PV=("Mass")/("Molar Mass")xxRxxT`.
Molar Mass `=("Mass")/(V)xx(RxxT)/(P)`.
Density `=("Mass")/(V)`
Molar Mass of `CO_(2)=(DxxRxxT)/(P)`
Standard Temperature `=273K`
Standard Pressure `=760 mm` of Hg =1 atm
`=(1.977xx0.0821xx273)/(1)`
`=44`.
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