How many atoms does 2.0 moles of He represent?
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To determine the number of atoms in a given number of moles, you can use Avogadro's number. Avogadro's number (6.022 x 10^23) represents the number of atoms in one mole of a substance.
To find the number of atoms in 2.0 moles of helium (He), you can multiply the number of moles by Avogadro's number:
Number of atoms = 2.0 moles * (6.022 x 10^23 atoms/mole)
= 1.2044 x 10^24 atoms
Therefore, 2.0 moles of helium (He) represents approximately 1.2044 x 10^24 atoms.
To determine the number of atoms in a given number of moles, you can use Avogadro's number, which states that there are 6.022 x 10^23 atoms in one mole of any substance.
Therefore, to find the number of atoms in 2.0 moles of He, you multiply the number of moles by Avogadro's number:
Number of atoms = 2.0 moles x (6.022 x 10^23 atoms/mole)
Calculating this expression will give you the answer.