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

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To determine the number of hydrogen atoms in a 5g sample of pure hydrogen, one can use the formula: Number of atoms = Number of moles * Avogadro's Number. The molecular weight of hydrogen is approximately 1g/mol, which means a 5g sample contains 5 moles of hydrogen. Multiplying 5 moles by Avogadro's Number (approximately 6.022 x 10^23) yields the total number of hydrogen atoms. This calculation confirms the importance of Avogadro's Number in quantifying atoms in a given mass of substance. Understanding these concepts is essential for solving related chemistry problems.
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How many hydrogen atoms are there in a 5 sample of pure hydrogen?
 
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What is a "5 sample"?
 
sorry, a 5g 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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