To calculate the amount of heat involved in the neutralization, we first need to determine the number of moles of HCl and NaOH reacting.Moles of HCl = volume L concentration M Moles of HCl = 0.025 L 0.1 M = 0.0025 molesMoles of NaOH = volume L concentration M Moles of NaOH = 0.025 L 0.1 M = 0.0025 molesSince the moles of HCl and NaOH are equal, the reaction goes to completion, and all the acid and base are neutralized.Now, we can use the heat of neutralization to find the heat involved in the reaction.Heat involved = moles of HCl heat of neutralizationHeat involved = 0.0025 moles -57.1 kJ/mol = -0.14275 kJThe amount of heat involved in the neutralization is -0.14275 kJ. The negative sign indicates that the reaction is exothermic, meaning heat is released during the neutralization process.