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ChemistryMole ConceptAtomic mass/Average Atomic Mass/Average Molecular MassMedium2 minQB

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Relative density of a gaseous substance w.r.t. $CH_{4}$ is 4 . Vapour density of the substance will be

Answer:

Solution:

Relative density w.r.t. $CH_{4} = \frac{density of gaseous subs tan ce ( T , P )}{density of CH _{4} ( T , P )}$

$4 = \frac{\frac{PM _{0}}{RT}}{\frac{P \times 16}{RT}} \Rightarrow M_{0} = 64$

Vapour densiy $= \frac{Molecular mass}{2} = \frac{64}{2} = 32$

Stream:JEESubject:ChemistryTopic:Mole ConceptSubtopic:Atomic mass/Average Atomic Mass/Average Molecular Mass

⏱ 2mℹ️ Source: QB

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