What is the mass of an iron atom in grams?

What is the mass of an iron atom in grams?

We must first find the molar mass of iron on the Periodic Table, which is 55.845 g/mol. Notice the molar mass is the number of grams in 1 mol. We need to find out the number of grams in one atom for which we ned to use the Avogradro's number ( 6.0221408 *10^23 atoms or molecules / mol).

55.845 g * 1mol = 9.27 x 10-23 g

1 mol 6.0221408 *10^23 atoms