Determine the volume of chlorine to react with 22.4 g of iron if the reaction product is ferric chloride.

1) We compose the reaction equation: Cl2 + Fe = FeCl2.
2) Find the amount of iron substance. To do this, the mass given in the problem must be divided by the molar mass of iron (the molar mass is determined using the periodic table, for iron it is 56): 22.4 / 56 = 0.4 mol.
3) According to the reaction equation, we determine that the amount of chlorine is equal to the amount of iron and is equal to 0.4 mol.
4) In order to find the desired value, we must multiply the amount of chlorine by the molar volume: 0.4 * 22.4 = 8.96 liters – the answer.