Calculate A) heat energy q (kJ) & B) Enthalpy change ΔHrxn (kJ/mol) For the following reaction given the information: Sodium hydroxide and ammonium chloride NaOH (aq) + NH4Cl (aq) -> NaCl (aq) + NH4OH (aq) 50 mL 2 M NaOH mixed with 50 mL 2 M NH4Cl density - 1.03 g/mL specific heat - 4.184 J/(g·°C) calorimeter constant -25.5 J/°C Tmax (°C) = 20.4 Tinitial (°C) = 19.5