Chemistry

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A 1.20g sample of benzoic acid is burned in excess of )2 in a bomb calorimeter immersed in 1300 g of water. The temperature of the water rises from 25 to 30.2 degrees C. The heat of combustion of benzoic acid is -26.4 kJ/g. The heat capacity of water is 4.18. What is the heat capacity of the bomb calorimeter (in J/C)?

  • Chemistry -

    q = [mass H2O x specific heat H2O x (Tfinal-Tinitial)] + [Ccal x (Tfinal-Tinitial)]
    q = 26,400 J/g x 1.20 g = ?
    Substitute " for q in the first equation along with the other data and solve for Ccal. q is + for the first equation.

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