BOMB CALORIMETRY LAB WORKSHEETS WORKSHEETS - DO NOT HAND IN 12409 Part 1 - Determining Cy for a Bomb Calorimeter (using-1g sample of Benzoic Acid) Reaction equation for the combustion of benzoic acid G Hs O2 15) + 2 Ozigo Tonigo + 3H2O moles -OS -26.02 kJ g1 Based on the stoichiometry of the above reaction Angas = T combustion = 298 K AH combustion for benzoic acid Weight of beaker + pellet: 16.923 g Weight of empty beaker: 15 9 Weight of pellet: DIL V CV-- LOH combustion) - Recension To Ti 9 Time (s) Temp. (C) Time (s) Temp. (C) Time (s) Temp. (C) OD 269 361 26.26 2-30 60 AT = Tina - Tinitial 26 6 24 801 82c Determine Cy for the calorimeter, in units of kJK-1 BOMB CALORIMETRY LAB WORKSHEETS Part 2 - Analysis of an Unknown Sample 9.294 KJK-1 Tcombustion = 298 K Cv for calorimeter provided = Reaction equation for the combustion of the unknown sample: n 202 + m Ho noa moles Based on the stoichiometry of the above reaction, Angas = Weight of beaker + pellet: 16.895 9 Weight of empty beaker: 15.909 _9 Weight of pellet g Time (s) Temp. (C) Time (s) Temp. (C) 23 63. 0986 Time (s) Temp. (C) 22.02 DO 400 3371 33.21 23.18 23 68 BUDO 330 33.50 23.70 2371 5:00 AT = Tfinal - Tinitial: 109 Determine AHcombustion for your sample in units of kJ.g