How many atoms of sulfur are in 1.00 mol of iron(ii) sulfate, feso4

1.26 x 10²³atoms

Explanation:

Given parameters:

Number of moles = 1mol

Unknown:

Number of atoms of sulfur = ?

Solution

From the given parameters, we can find the number of moles of sulfur in the given compound FeSO₄.

We use the formula mass of atoms to find the number of moles:

    Atomic number of Fe = 56g

                                     S = 32g

                                     O = 16g

Formula mass = 56 + 32 + 4(16) = 152

  Number of moles of sulfur = x 1

                                              = 0.21mol

Using the number of moles of sulfur, we can now calculate the number of atoms:

               Number of atoms = number of moles x 6.02 x 10²³

              Number of atoms = 0.21 x 6.02 x 10²³ = 1.26 x 10²³atoms