When a solution containing 8.00 g of NaOHNaOH in 50.0 g of water at 25.0 ∘C is added to a solution of 8.00 g of HClHCl in 250.0 g of water at 25.0 ∘C in a calorimeter, the temperature of the solution increases to 33.5 ∘C Assuming that the specific heat of the solution is 4.18 J/(g⋅∘C) and that the calorimeter absorbs a negligible amount of heat, calculate ΔH= in kilojoules for the reaction NaOH(aq)+HCl(aq)→NaCl(aq)+H2O(l) Express your answer in kilojoules per mole to two significant figures.

Question

When a solution containing 8.00 g of NaOHNaOH in 50.0 g of water at 25.0 ∘C is added to a solution of 8.00 g of HClHCl in 250.0 g of water at 25.0 ∘C in a calorimeter, the temperature of the solution increases to 33.5 ∘C

Assuming that the specific heat of the solution is 4.18 J/(g⋅∘C) and that the calorimeter absorbs a negligible amount of heat, calculate ΔH= in kilojoules for the reaction

NaOH(aq)+HCl(aq)→NaCl(aq)+H2O(l)

Express your answer in kilojoules per mole to two significant figures.

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