Determining the Amount of Energy in Food (REPORT) Date Name partner(s) Experimental Data: Volume of water...

Transcribed Image Text:

Determining the Amount of Energy in Food (REPORT) Date Name partner(s) Experimental Data: Volume of water added (mL) Mass of water (g) Initial water temperature °C Final water temperature °C AT Initial mass of holder and Cheeto (g) Final mass (g) Mass of Cheeto burned (g) Trial 1 20 20 20.8 82.5 61.062 60.248 Trial 2 20 20 19.2 61.3 60.764 60.206 Trial 3 20 20 17.4 Section 74.0 61.198 60.299 Trial 4 20 20 18.3 71.0 61.066 60.293 Name of lab Trial 5 20 20 18.9 53.4 60.815 60.319 Volume of water added (mL) Mass of water (g) Initial water temperature °C Final water temperature °℃ Initial mass of holder and Cheeto (g) AT Final mass (g) Mass of Cheeto burned (g) Trial: Trial: Trial 6 20 20 18.9 73.4 61.241 60.375 Trial 7 Trial 8 Trial 9 Data Analysis and Post-lab Questions: Show all work for credit and use proper significant figures and units. 1. Determine the three most precise Trials to be used in the Data Analysis and explain why. Trial : Trial 10 2. Use the three trials determined in Question 1 above, to calculate heat evolved per gram of Cheeto burned (units of joules/gram, calories/gram, and Calories/gram) for each sample in each trial. Recall our initial assumption: Heat absorbed by water = Heat released by Cheeto and that water has a specific heat of 4.18 J/gram 0 C. Show all work for full credit. Trial 1: Trial 2: Trial 3: 3. ording to the bag, Flamin Hot Cheetos have (show work). 4. Calculate your percent error for Calorie content. Percent error is calculated as, Your value - Published value Published value Error for Trial 1: % Error for Trial 2: % Error for Trial 3: Calories/gram x 100 5. Complete the following table. 1. Trial # 2. joules 3. calories 6. To help explain your % Error results, identify two sources of error. (Do not cite human error as human error is correctable.) Calories 7. If you could redesign the experiment, explain three things you would do differently. Calories/Gram % Error of CHEETO burned 8. Fats and oils used to fry Cheetos are high in lipids. What foods might you investigate to determine their calorie content for carbohydrates? Proteins? Determining the Amount of Energy in Food (REPORT) Date Name partner(s) Experimental Data: Volume of water added (mL) Mass of water (g) Initial water temperature °C Final water temperature °C AT Initial mass of holder and Cheeto (g) Final mass (g) Mass of Cheeto burned (g) Trial 1 20 20 20.8 82.5 61.062 60.248 Trial 2 20 20 19.2 61.3 60.764 60.206 Trial 3 20 20 17.4 Section 74.0 61.198 60.299 Trial 4 20 20 18.3 71.0 61.066 60.293 Name of lab Trial 5 20 20 18.9 53.4 60.815 60.319 Volume of water added (mL) Mass of water (g) Initial water temperature °C Final water temperature °℃ Initial mass of holder and Cheeto (g) AT Final mass (g) Mass of Cheeto burned (g) Trial: Trial: Trial 6 20 20 18.9 73.4 61.241 60.375 Trial 7 Trial 8 Trial 9 Data Analysis and Post-lab Questions: Show all work for credit and use proper significant figures and units. 1. Determine the three most precise Trials to be used in the Data Analysis and explain why. Trial : Trial 10 2. Use the three trials determined in Question 1 above, to calculate heat evolved per gram of Cheeto burned (units of joules/gram, calories/gram, and Calories/gram) for each sample in each trial. Recall our initial assumption: Heat absorbed by water = Heat released by Cheeto and that water has a specific heat of 4.18 J/gram 0 C. Show all work for full credit. Trial 1: Trial 2: Trial 3: 3. ording to the bag, Flamin Hot Cheetos have (show work). 4. Calculate your percent error for Calorie content. Percent error is calculated as, Your value - Published value Published value Error for Trial 1: % Error for Trial 2: % Error for Trial 3: Calories/gram x 100 5. Complete the following table. 1. Trial # 2. joules 3. calories 6. To help explain your % Error results, identify two sources of error. (Do not cite human error as human error is correctable.) Calories 7. If you could redesign the experiment, explain three things you would do differently. Calories/Gram % Error of CHEETO burned 8. Fats and oils used to fry Cheetos are high in lipids. What foods might you investigate to determine their calorie content for carbohydrates? Proteins?