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What weight of hydrogen at STP could be ...

What weight of hydrogen at `STP` could be contained in a vessel that holds `4.8 g` oxygen at `STP`?

A

4.8 g

B

3.0 g

C

0.6 g

D

0.3 g

Text Solution

Verified by Experts

The correct Answer is:
D
According to Avogadro's law, equal volume of all gases under similar conditions of temperature and pressure contain equal number of molecules. As such
No. of molecules of `H_(2) =`No. of molecules of `O_(2)`
`(w xx N_(0))/(2) = (4.8 xx N_(0))/(32)`
Where `N_(0)` = Avogadro's number `(6.02 xx 10^(23))` and
`omega =` mass of `H_(2)` (in g)
`:. omega = (4.8 xx 2)/(32) = 0.3 g`
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