Exp 10: Caloric Content of Food||

Your Data:

|First Item|Second Item|Third Item|

What Food are you using||||

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Mass of empty beaker||||

Mass of beaker and water||||

Net Mass of the water||||

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Initial mass of food and holder||||

Final mass of burnt food and holder||||

Net Mass of the burnt food||||

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Initial temp of the water||||

Final temp of the water||||

∆ T in C (change in temperature)||||

Calculations: Show your numbers in the following calculation equations.

First Item_________________

Heat (q) gained by the water ____J q = ΔT x mass of the water x (4.184 J/g˚C )

Where ΔT = Tfinal – Tinitial of the water

Heat energy gained per gram of food ____J/g

Divide q determined above by the net mass of the food item

Convert J/g to Cal/g ____Cal/g

4.184 J = 1 cal 1000 cal = 1 Cal

Second Item_________________

Heat (q) gained by the water ____J q = ΔT x mass of the water x (4.184 J/g˚C )

Where ΔT = Tfinal – Tinitial of the water

Heat energy gained per gram of food ____J/g

Divide q determined above by the net mass of the food item

Convert J/g to Cal/g ____Cal/g

4.184 J = 1 cal 1000 cal = 1 Cal

Third Item_________________

Heat (q) gained by the water ____J q = ΔT x mass of the water x (4.184 J/g˚C )

Where ΔT = Tfinal – Tinitial of the water

Heat energy gained per gram of food ____J/g

Divide q determined above by the net mass of the food item

Convert J/g to Cal/g ____Cal/g

4.184 J = 1 cal 1000 cal = 1 Cal