In the laboratory a student burns a 1.13-g sample of dimethyl oxalate (C,H,04) in a bomb calorimeter containing 1070. g of water. The temperature increases from 24.00 °C to 27.00 °C. The Water heat capacity of water is 4.184 J glec!. The molar heat of combustion is -1675 kJ per mole of dimethyl oxalate. Insulated Sample dish outside chamber CH,O,(s) + 7/2 O,(3) →4 CO2(2) + 3 H,0(1) + Energy Combustion (boml Calculate the heat capacity of the calorimeter. heat capacity of calorimeter =

Aluminum mass of metal 50.820g temp of boiling water 98.1 C volume of water in cup 50mL temp of water in cup 21.4 C final temp of system 35.3 C *4.18 J/gK specific heat capacity *Ccal = 16.1 J/C approx. 1. Calculate heat gained by water in calorimeter (qwater) after adding aluminum. 2. Calculate heat gained by calorimeter (qcalorimeter) after adding aluminum. 3. From 1 and 2, calculate heat lost by aluminum (qmetal). 4. Calculate specific heat capacity of aluminum in (J/gK)

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A constant volume calorimeter was calibrated by carrying out a reaction known to release 3.50 kJ of heat in 0.200 L of solution in the calorimeter (q=-3.50 kJ), resulting in temperature rise of 7.32 degrees celsius. In a subsequent experiment, 100.0 mL of .200 M KOH (aq) were mixed in the same calorimeter and the temperature rose by 2.49 degrees celsius. What is the change in internal energy of the reaction mixture as a result of neutralization reaction?