Question

1) The reaction of magnesium with sulfuric acid was carried out in a calorimeter. This reaction caused the temperature of 55. grams of liquid water, within the calorimeter, to raise from 1.0^oC to 28.^oC. Calculate the energy associated with this reaction.

Answer 1

Q = C x m x deltaT

C = 4200 J/kg°C

1^oC = 1 K

Q = 4200 x 0.05 x (28 - 1) = 5670 J