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Mole Concept And Stoichiometry — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryMole Concept And Stoichiometry3 Marks
Question
If the hydrogen sample contains N molecules, how many molecules are present in oxygen sample?
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Answer

Amount of hydrogen and oxygen gases is same $=2 g$
So, for oxygen $32 g$ of gas has $= N$ molecules
Then, $2 g$ of gas has $= N / 32 \times 2=16$
No of molecules of oxygen $= N / 16$.

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