Final answer:
To find the number of hydrogen atoms in 2.50 mol of hydrogen, multiply the number of moles by Avogadro's number.
Step-by-step explanation:
In order to determine the number of hydrogen atoms in 2.50 mol of hydrogen, you need to use Avogadro's number. Avogadro's number is defined as 6.022 x 10^23, which represents the number of particles in one mole of a substance. In this case, since you have 2.50 mol of hydrogen, you would multiply this by Avogadro's number to find the number of hydrogen atoms. So, 2.50 mol x 6.022 x 10^23 atoms/mol = 1.506 x 10^24 hydrogen atoms.
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