Here's how to calculate the number of moles in 233.2 g of iron (Fe):

1. Find the molar mass of iron:

* The molar mass of iron (Fe) is 55.845 g/mol (you can find this on the periodic table).

2. Use the formula:

* moles = mass / molar mass

3. Plug in the values:

* moles = 233.2 g / 55.845 g/mol

4. Calculate:

* moles ≈ 4.17 mol

Therefore, there are approximately 4.17 moles of iron in 233.2 g of iron.