Which expression best reflects the way to calculate the enth…
Which expression best reflects the way to calculate the enthalpy of the reaction of MgO and HCl to form MgCl2 and H2O (ΔHrxn,MgO+HCl) in kJ/mol from the released heat of reaction, given the following data? Mass of MgO 0.511 g Specific Heat of HCl soln (water) 4.184 J/g-deg Change in temperature, ΔT 4.4 deg Volume of HCl added 101.2 mL Concentration of HCl added 0.997 M MW, MgO 40.304 g/mol Density of HCl solution 1.016 g/mL ΔH1 (experimentally determined) -466.8 kJ/mol ΔHf,water -285.8 kJ/mol