3.1x1024 atoms of He into moles?
1 mole of He atoms contains 6.02 x 10^23 atoms.
To convert the given number of atoms into moles, you need to use Avogadro's number. Avogadro's number is defined as 6.022 × 10^23 atoms per mole.
To find the number of moles, you can use the following formula:
Number of moles = Number of atoms / Avogadro's number
Given that you have 3.1 × 10^24 atoms of He, you can calculate the number of moles as follows:
Number of moles = 3.1 × 10^24 atoms / 6.022 × 10^23 atoms per mole
Now, let's perform the calculation:
Number of moles = 3.1 × 10^24 / 6.022 × 10^23
≈ 5.14 moles (rounded to two decimal places)
Therefore, there are approximately 5.14 moles of helium atoms in 3.1 × 10^24 atoms of helium.