record this value as final temperature of water. Allow the charcoal-like residue from the nut sample to cool to room temperature. Determine the mass of the residue and record its mass on your report sheet. Allow the can to cool to room temperature, remove the cardboard and thermometer, clean the black soot off the can, and pour the water from the can down the drain. Repeat the experiment again. Data sheet a. Type of nut used b. Mass of empty soft drink can, g C. 3 Mass of can + water d. Initial temperature of water, °C e. Final temperature of water, °C f. Mass of nuts, g g. Mass of residue after nut is burned h. Mass or water (line c-Line b) i. Temperature change AT °C j. Specific heat of water k. Energy absorbed by water, cal (Equation 2) o. Calorie content of nut sample(cal/g) Modifications to Improve Results: Trial Walnut 1. Energy released by nut sample, cal (Equation 1) m. Energy released by nut sample, Cal (Nutritional) n. Mass of nut consumed by combustion, g. 12.7 64.25 26 86 2.44 0.24 51-55 60. 1.0 cal/g °C Trial2 Walnut 12.7 67 24 75 1.36 0.1 54.3 51 79

record this value as final temperature of water. Allow the charcoal-like residue from the nut sample to cool to room temperature. Determine the mass of the residue and record its mass on your report sheet. Allow the can to cool to room temperature, remove the cardboard and thermometer, clean the black soot off the can, and pour the water from the can down the drain. Repeat the experiment again. Data sheet a. Type of nut used b. Mass of empty soft drink can, g C. 3 Mass of can + water d. Initial temperature of water, °C e. Final temperature of water, °C f. Mass of nuts, g g. Mass of residue after nut is burned h. Mass or water (line c-Line b) i. Temperature change AT °C j. Specific heat of water k. Energy absorbed by water, cal (Equation 2) o. Calorie content of nut sample(cal/g) Modifications to Improve Results: Trial Walnut 1. Energy released by nut sample, cal (Equation 1) m. Energy released by nut sample, Cal (Nutritional) n. Mass of nut consumed by combustion, g. 12.7 64.25 26 86 2.44 0.24 51-55 60. 1.0 cal/g °C Trial2 Walnut 12.7 67 24 75 1.36 0.1 54.3 51 79

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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