The density of a gaseous element is 5 times that of oxygen
under identical conditions. If the molecule is triatomic.
What will be its atomic mass?
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Answer:
Molecular mass of oxygen = 32
Vapour density of oxygen =
32/2
=16
Thus, vapour density of the gaseous element =16×5=80
Molecular mass of the gaseous element =80×2=160
As the molecule is triatomic, its atomic mass =
/Mol.massAtomicity
=
160/3
=53.33
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