Example 5.9b: Another Example of the Measurement of an Enthalpy Change
When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of \(\ce{FeCl2(s)}\) and 8.60 kJ of thermal energy is produced. What is the enthalpy change for the reaction when 1 mole of \(\ce{FeCl2(s)}\) is produced?