ICSE Class 10 Chemistry 2020 Solved Paper

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Question : 69 of 86
 
Marks: +1, -0
State the volume occupied by 40gm of methane at STP, if its vapour density (V.D.) is 8.
Solution:
Given : V.D. of Methane =8
Molecular mass = V.D. ×2=8×2=16
If 16gm of CH4 has a volume
=22.4l at STP
Then 40gm of CH4 has a volume
=22⋅416×40
=56l
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