<u>The mass of hydrogen atoms in the sample of water is 3.98g</u>
This can be solved by understanding of Avogadro's number and mole relationship concept.
<h3 /><h3>Avogadro's number</h3>
<u>This is a proportionality that relates the number of particles to the amount of substance in that sample and it is given as </u>
A molecule of water have the chemical formula as HO. This implies that for every 1 atom or molecule of oxygen, 2 hydrogen must be present.
In the question given, we have atoms of oxygen. This implies we must have
Now, let's compare this molar mass - Avogadro's number
molar mass of hydrogen = 1g/mol
From the calculation above, we would have 3.98g of hydrogen present in that particles of oxygen.
learn more on Avogadro's concept
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