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Relationship between Vapor Density & Relative Molecular Mass

The ratio of ...

Question

The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.

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Solution

$V a p o u r d e n s i t y = \frac{W t . o f a c e r t a i n v o l u m e o f a g a s}{W t . o f a n e q u a l v o l u m e o f H_{2}}$
At same condition of temperature and pressure.

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