A quantity of 85.0 mL of 0.900 M HCl is mixed with 85.0 mL of 0.900 M KOH in a constant-pressure calorimeter that has a heat capacity of 325 J/C. If the initial temperatures of both solutions are the same at 18.24C, what is the final temperature of the mixed solution? The heat of neutralisation is -56.2 kJ/mol. Assume the density and specific heat of the solutions to be the same as those of water.

asked by Daniella

8 years ago

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1 answer

q = mc*dT
56200 = 170 x 4.18 x (T-18.24)

answered by DrBob222

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Question

A quantity of 85.0 mL of 0.900 M HCl is mixed with 85.0 mL of 0.900 M KOH in a constant-pressure calorimeter that has a heat capacity of 325 J/C. If the initial temperatures of both solutions are the same at 18.24C, what is the final temperature of the mixed solution? The heat of neutralisation is -56.2 kJ/mol. Assume the density and specific heat of the solutions to be the same as those of water.

1 answer

q = mc*dT
56200 = 170 x 4.18 x (T-18.24)

DrBob222 · Answer

q = mc*dT 56200 = 170 x 4.18 x (T-18.24)