A balloon filled with helium gas contains 8.89 moles of helium. How many atoms are present in the balloon? Show all of your work, including starting quantity, conversion factor, and units.

There are 5.35 × 10²⁴ atoms in 8.89 moles of Helium.

Explanation:

Given that number of moles of Helium = 8.89 moles

Moles and Avogadro's number are related to each other by multiplying those two we can convert moles into atoms, molecules and Particles .

We have to convert the moles into atoms by multiplying the molar amount by Avogadro's number as,

Number of atoms = 8.89 × 6.022 × 10²³ atoms

                             = 5.35 × 10²⁴ atoms

So there are 5.35 × 10²⁴ atoms in 8.89 moles of Helium.