1. Find the molar mass of iron:
* The molar mass of iron (Fe) is approximately 55.845 g/mol. This means 1 mole of iron weighs 55.845 grams.
2. Calculate the number of moles in 1 gram of iron:
* Divide the mass of iron (1 gram) by the molar mass of iron:
1 g / 55.845 g/mol = 0.0179 mol
3. Use Avogadro's number:
* Avogadro's number states that there are 6.022 x 10²³ atoms in one mole of any substance.
4. Calculate the number of atoms:
* Multiply the number of moles of iron by Avogadro's number:
0.0179 mol * 6.022 x 10²³ atoms/mol = 1.08 x 10²² atoms
Therefore, approximately 1.08 x 10²² iron atoms are present in 1 gram of iron.
