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In an experiment to determine the caloric content of a granola bar, a 0.5 g sample...

In an experiment to determine the caloric content of a granola bar, a 0.5 g sample of the bar was burned in an oxygen atmosphere and the temperature rose by 11.12 oC. In a separate experiment using the same calorimeter, a 1.27 A current from a 12.5 V source was applied for 180 s and the temperature rose 3.88 oC. (a) Calculate the heat capacity of the calorimeter. (The heat produced by electric elements is as follows: q = IVt) (b) Calculate the heat released (in Joules) by the sample. (c) Calculate the bar’s caloric content. (1 dietary calorie = 4.184 kJ; mbar = 23 g)

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