Question

Hi! Can someone help me with this page please. (:

show your calculations for:

• Heat absorbed by water for each trial
• Mass of each object used
• kJ/g and kcal/g for each object used

155 Heat of Combustion Experiment 22 Report Sheet NAME 2 Sample Mass of empty can Mass of can & water 1 Candle 12,75 113,36 3, 75 3,26 Peanut :12.80 113.20 10.50 9.00 Mass of food & holder 3 Cashew 13,20 T11.80 8.20 7.88 23,5°C.' 32.6°C Mass of food after burn Initial Temp H₂O Final Temp H2O 21.6 21.7 58.8 45.5 Sample Heat calculated (q) Heat in kJ/g Heat in kcal/g Comparison of food samples if requested. Which sample gives more heat? Is this a reasonable result? Knowing the standard candle has an actual heat of combustion of 43 kJ/g what was the % error in your measurement? Where did the missing heat energy go? What is a major systematic error in this experiment? Suggest some way that we could improve our measurement.

Thank you!