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The density of a gaseous element is 5 ti...

The density of a gaseous element is 5 times that of oxygen under similar conditions. If the molecule is triatomic, what will be its atomic mass ?

Text Solution

Verified by Experts

Molecular mass of oxygen `= 32 u`
Density of oxygen `= (32)/(2) =16` u
Density of gaseous element `= 16 xx 5 = 80` u
Molecular mass of gaseous element `= 80 xx 2 = 160` u
Atomicity of the element = 3
`:.` Atomic mass of the element `= ("Molar mass")/("Atomicity")=(160)/(3)=53.33` u.
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