Respuesta :
Answer:
There would be around 2.7*10^24 molecules.
Explanation:
You have to multiply the amount of moles by Avogadro's number to get amount of molecules.
The statement for the number of molecules are contained in hydrogen gas "27.1 x [tex]10^{23}[/tex] molecules."
What is a molecule?
Chemical bonds hold two or more atoms together in a molecule. If they have more than single atom, the atoms can be the same (for example, an oxygen molecule has two oxygen atoms) or different (a water molecule has two hydrogen atoms and one oxygen atom).
1 mole of water will be of 6.022 x [tex]10^{23}[/tex] molecules of H2O
Then,
= 4.5 mol × 6.022 x [tex]10^{23}[/tex] molecules
= 27.099 x [tex]10^{23}[/tex] molecules of H2O
≈ 27.1 x [tex]10^{23}[/tex] molecules of H2O
As a result, 4.5 moles of water contains 3.01 x [tex]10^{23}[/tex] molecules
Hence, the correct option is 27.1 x [tex]10^{23}[/tex] molecules.
Learn more about molecules here
https://brainly.com/question/19922822.
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