1. Find the molar mass of iron:
* The molar mass of iron is 55.845 g/mol (you can find this on the periodic table).
2. Calculate the number of moles of iron:
* Moles = mass / molar mass
* Moles = 55.8 g / 55.845 g/mol
* Moles ≈ 1 mol
3. Use Avogadro's number to find the number of atoms:
* Avogadro's number is 6.022 x 10^23 atoms/mol.
* Number of atoms = moles x Avogadro's number
* Number of atoms ≈ 1 mol x 6.022 x 10^23 atoms/mol
* Number of atoms ≈ 6.022 x 10^23 atoms
Therefore, there are approximately 6.022 x 10^23 atoms in 55.8 grams of iron.
