A 0.2197-g sample of vanillin (C8H8O3) is then burned in the same calorimeter, and the temperature increases by 3.26\deg C. What is the energy of combustion per gram of vanillin?Energy = kJ/g
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Lazim D.
The combustion of 1.013 g of vanillin, C8H8O3, in a bomb calorimeter which has a heat capacity as 4.90 kJ/oC, causes the temperature to rise from 24.89 oC to 30.09 oC. What is the heat of combustion of vanillin, expressed in kilojoules per mole of C8H8O3? (C = 12.0 g/mol; H = 1.0 g/mol; O = 16.0 g/mol)
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A 0.8991 g sample of vanillin (C8H8O3) was burned in a bomb calorimeter whose total heat capacity is 20.21 kJ/K. The temperature of the calorimeter apparatus increased by 1.119 K. Calculate ∆U in kJ per mole of vanillin. The molar mass of vanillin is 152.16 g/mol.
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