When a chemist mixed 3.54 g of LiOH and 260. mL of 0.65 M HCl in a constant-pressure calorimeter, the final temperature of the mixture was 24.7°C. Both the HCl and LiOH had the same initial temperature, 21.6°C. The equation for this neutralization reaction is:
LiOH(s) + HCl(aq) → LiCl(aq) + H2O(l).
Given that the density of each solution is 1.00 g/mL and the specific heat of the final solution is 4.1801 J/g·K, calculate the enthalpy change for this reaction in kJ/mol LiOH. Assume no heat is lost to the surroundings.
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