• Jan 23, 2026 lab report calorimetry naoh hcl change in temperature (T_f - T_initial) For example: Mass of solution: Sum of volumes converted to grams (assuming density is 1 g/mL) Temperature change: ΔT = T_f - T_initial Determining Enthalpy Change (ΔH) To find the molar enthalpy change of the neutralization: Calculate the BY Christy Waelchi