The following three reactions will be conducted in this experiment. Use the table of thermodynamic data from an appropriate resource to calculate the molar enthalpy of the reaction.
Reaction 1: An aqueous solution of sodium hydroxide reacts with an aqueous solution of hydrochloric acid, yielding water.
Reaction 2: An aqueous solution of sodium hydroxide reacts with an aqueous solution of ammonium chloride, yielding aqueous ammonia (NH3) and water.
Reaction 3: An aqueous solution of hydrochloric acid reacts with aqueous ammonia (NH3), yielding aqueous ammonium chloride.
Reaction Balanced reaction equation Change in H
1 NaOH(aq) + HCl(aq) -> NaCl(aq) + H2O(l) -57.9 kJ/mol
2 NaOH(aq) + NH4Cl(aq) -> NH3(aq) + H2O(l) + NaCl(aq)
3 NH3(aq) + HCl(aq) -> NH4Cl(aq)
