Part 2: Hydrochloric Acid + Magnesium Part 2: Hydrochloric Acid + Magnesium The strategy for these calculations are similar to those in Part 1. In Part 2, magnesium is the li reagent. Volume of hydrochloric acid solution Density of hydrochloric acid solution Mass of hydrochloric acid solution (d=m/V) Specific heat capacity of hydrochloric acid solution Change in temperature for reaction C H(msT) Mass of magnesium Moles of magnesium* mol H per mole of MgO=(molesMgH) J. mol1 H per 1 mole Mg(1kJ=1000J) kJmol1 * Use the mass and atomic mass of Mg **The amount of heat we measured is, according to the equation below, per 1mol of Mg. Mg(s)+2HCl(aq)MgCl2(aq)+H2(g)