Question

How many number of molecules are present in 2g of H2 molecule and what is their
volume at S.T.P?​

Answer 1

Answer:

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Answer 2

Given,

Gram Molecular Mass of H = 1 g

Molar Mass of H₂ = (1+1) g

= 2 g

Given Mass = 2 g

Moles = 2/2

= 1

No. of Molecules = 1*6.022*10²³

= 6.022*10²³

At S.T.P, any gas of 1 mole must acquire a volume of 22.4 L,

So, Volume = 22.4 L

Answers: No. of Molecules: 6.022*10²³, Volume = 22.4 L.

I hope this helps.