How many hydrogen atoms are there in a 5 sample of pure hydrogen?

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How many hydrogen atoms are there in a 5 sample of pure hydrogen?
 
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Discussion

What is a "5 sample"?
 
Well, can you think of any formulae that can help you find this out? Does Avogadro's number ring a bell?
 
This looks like homework.
Number of atoms = Number of moles * Avogadro's Number
Use that with the molecular weight of Hydrogen for your answer.
 

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