A101.2 ml sample of 1.00 m naoh is mixed with 50.6 ml of 1.00 m h2so4 in a large styrofoam coffee cup; the cup is fitted with a lid through which passes a calibrated thermometer. the temperature of each solution before mixing is 21.45 °c. after adding the naoh solution to the coffee cup and stirring the mixed solutions with the thermometer, the maximum temperature measured is 31.50 °c. assume that the density of the mixed solutions is 1.00 g/ml, that the specific heat of the mixed solutions is 4.18 j/(g·°c), and that no heat is lost to the surroundings

The enthalpy change of the reaction when sodium hydroxide and sulfuric acid react can be calculated using the mass of solution, temperature change, and specific heat of water.

The balanced chemical equation for the reaction can be represented as,

Given volume of the solution = 101.2 mL + 50.6 mL = 151.8 mL

Heat of the reaction, q = Δ

m is mass of the solution = 151.8 mL *

C is the specific heat of solution = 4.18

ΔT is the temperature change =

q =

Moles of NaOH = NaOH

Moles of =

Enthalpy of the reaction =

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explanation:

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