1. Balanced Chemical Equation:

The balanced chemical equation is:

2Fe + 3S → Fe₂S₃

2. Convert Grams of Sulfur to Moles:

* Find the molar mass of sulfur (S): 32.06 g/mol

* Divide the mass of sulfur by its molar mass:

48.0 g S / 32.06 g/mol = 1.497 mol S

3. Use Mole Ratio from the Balanced Equation:

* The balanced equation shows a 2:3 mole ratio between Fe and S.

* For every 3 moles of S, we need 2 moles of Fe.

* Calculate the moles of Fe needed: (1.497 mol S) * (2 mol Fe / 3 mol S) = 0.998 mol Fe

4. Convert Moles of Iron to Grams:

* Find the molar mass of iron (Fe): 55.845 g/mol

* Multiply the moles of Fe by its molar mass:

(0.998 mol Fe) * (55.845 g/mol) = 55.7 g Fe

Answer: You need approximately 55.7 grams of iron to react completely with 48.0 grams of sulfur.