Suppose you place 0.0300 g of magnesium chips in a coffee-cup calorimeter and then add 100.0 mL of 1.00 M HCl. The reaction that occurs is
Mg(s) + 2 HCl(aq) → H2(g) + MgCl2(aq)
The temperature of the solution increases from 22.89 °C (296.04 K) to 24.24 °C (297.39 K). What is the enthalpy change for the reaction per mole of Mg? Assume a specific heat capacity of the solution is 4.20 J/g·K and the density of the HCl solution is 1.00 g/mL.