The reaction between naoh(aq) and h2so4(aq) was studied in a constant-pressure calorimeter: 100.0 ml portions of 1.00 m aqueous naoh and h2so4, each at 24.0c, were mixed. the volume of the mixture was 200.0 ml. the maximum temperature achieved was 30.6c. neglect the heat capacity of the calorimeter and the thermometer, and assume that the solution of products has a density of 1.00 g/ml and a specific heat capacity of 4.18 j/(g·k). calculate h, the heat (enthalpy) of reaction, in kj per mole of acid. (hint: you may not have the equivalent amounts of naoh and h2so4 in this experiment.)

110,4 kJ / mole of acid

Explanation:

The reaction of NaOH with H₂SO₄ is:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

Moles of NaOH and H₂SO₄ are:

0,1000L×1,00M = 0,100 moles of NaOH and 0,100 moles of H₂SO₄. As 2 moles of NaOH reacts with 1 mole of  H₂SO₄, moles of acid that react are 0,100/2 = 0,0500moles of acid.

The produced heat is:

Q = C×m×ΔT

Where C is specific heat capacity (4,18J/gK)

m is mass: 200,0mL×(1,00g/mL) = 200g

ΔT is change in temperature: 30,6°C - 24,0°C = 6,6°C = 6,6K

Thus, Q is:

Q = 4,18J/gK×200g×6,6K

Q = 5518J = 5,52kJ

ΔH in kJ per mole of acid:

5,52kJ / 0,0500moles of acid = 110,4 kJ / mole of acid

I hope it helps!