The CO2 gas kept at STP has volume 112 L.
[Hint : Molecular mass - 44]
(a) Find the number of moles of CO2.
b) Calculate the mass of 112 L CO2.
How many molecules of CO2 are present in it ?
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Answer:
(b)22.4L CO2= 44gm
112L CO2=44/224×10×112
= 220gm
(a) we know that,n=W/M( n= number of moles,w= mollar mass,atomic mass)
so,n= 220/44
n=5mol
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