Problem 2. You wish to determine theenergy content per gram andCalories per serving of achocolate chip cookie and a bananabread slice from the Student Union to decide which is less“fattening.” The intact cookie and banana bread slice you areanalyzing weigh 72.501 g and 69.003 g, respectively. Before you cananalyze the samples, the calorimeter heat capacity must bedetermined. It is known that combustion of 1.000 g of benzoicacid releases 26.44 kJ of heat = 26.44 kJ. Thus, you combust1.000 g of benzoic acid in a constant-volume calorimeter and recorda temperature increase of 2.52 °C.

2a. From the data given above, determine theheat capacity of the constant-volume calorimeter. To receivecredit, you must show all work in a legible, highly organizedmanner.

2b. Now you take a 5.688 g sample of thechocolate chip cookie and burn it in the same calorimeter. Duringthe combustion, the temperature of the water in the calorimeterincreases by 11.81 °C. For the chocolate chip cookie, calculate theenergy content in kJ/g and theCalories per serving. Please remember,you must show all work in a legible, highly organized manner.

2c. Finally, you take a 4.904 g sample of thebanana bread and run it in the same calorimeter. During thecombustion, the water temperature in the calorimeter increases by12.29 °C. For the banana bread slice, calculate theenergy content in kJ/g and theCalories per serving. Don’t forget, youmust show all work in a legible, highly organized manner.

2d (3p). Based on the above Problem2 data, is the chocolate chip cookie or banana bread sliceless “fattening” in terms of the energy content inkJ/g? What about in terms of the Caloriesper serving? In complete sentences, clearly justifyyour reasoning citing the evidence.