Problemas
7. How many H_(2) molecules are needed to make 4.00 moles of water in the following equation? 2H_(2)+O_(2)arrow 2H_(2)O 2.41times 10^24 E 12.04times 10^23 E 6.02times 10^23 4.82times 10^24 E Clear All
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Alejandro
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To determine how many
molecules are needed to make 4.00 moles of water, we need to use the balanced chemical equation:
From the equation, we can see that 2 moles of
are required to produce 2 moles of
. Therefore, the ratio of
to
is 1:1.Given that we have 4.00 moles of
, we can calculate the number of moles of
needed:Number of moles of
= 4.00 moles of
Now, we need to convert the number of moles of
to the number of molecules. We can use Avogadro's number, which is
molecules per mole.Number of molecules of
= 4.00 moles of
molecules/moleCalculating this gives us:Number of molecules of
=
moleculesTherefore, the correct answer is
molecules of
are needed to make 4.00 moles of water.