mmer 2022 Time (min:sec) 0:00 0:30 1:00 1:30 2:00 2:30 3:00 3:30 4:00 4:30 Experiment 8 Table 8.2: Temperature of Calori

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: Mmer 2022 Time Min Sec 0 00 0 30 1 00 1 30 2 00 2 30 3 00 3 30 4 00 4 30 Experiment 8 Table 8 2 Temperature Of Calori 1 (95.93 KiB) Viewed 73 times

V cold (mL):50mL
T cold: 21.6C
V hot (mL):50mL
T hot:40.1C
mmer 2022 Time (min:sec) 0:00 0:30 1:00 1:30 2:00 2:30 3:00 3:30 4:00 4:30 Experiment 8 Table 8.2: Temperature of Calorimeter Temperature Time (°C) (min:sec) 5:00 5:30 6:00 30.1 °C 31.9 °C 32.4°C 32,6 C 32.5 ℃ 32,4°C 32.3 °C 32,2°C 32.1°C 32,00 6:30 7:00 7:30 8:00 8:30 9:00 9:30 10:00 Temperature (°C) 31.9°C 31,8 °C 31.7℃ 31.6°C 31.6°C 31,5°℃ 31.4°C 31.3°C 3112°C 31,2°C CHEM 1215 31.1°C
90 Part A: Calibrating a Calorimeter In lab, you mixed known amounts of cool water and hot water in the calorimeter and measured the temperature change the water and the calorimeter cup as heat flowed between the water and the calorimeter until reaching ther- mal equilibrium (e.g. everything reached the same final temperature). Note that the final temperature is the maximum reached BEFORE the calorimeter begins losing heat to the rest of the universe. 1. What is the system here: the water or the calorimeter? 2. What are the immediate surroundings here: the water or the calorimeter? 3. What is the initial temperature of the cold water? 4. What is the final temperature of the cold water? 5. What is the mass of the cold water? 6. Calculate the heat content of the cold water (qcool). Show your work! You will need to use Eqn. 8.6 with a specific heat capacity of water of 4.184 J/g°C. 7. What is the initial temperature of the hot water? 8. What is the final temperature of the hot water? 9. What is the mass of the hot water? °C J °C
Summer 2022 Experiment 8 10. Calculate the heat content of the hot water (hot). Show your work! You will need to use Eqn. 8.6 with a specific heat capacity of water of 4.184 J/g°C. 11. Calculate the total heat content of the water (qhot + cool). Show your work! 12. Calculate the heat transferred to the calorimeter, qcal- Show your work! You will need to use Eqn. 8.7. CHEM 1215. qcal = CcalAT cal J °C 13. What is the initial temperature of the calorimeter? 14. What is the final temperature of the calorimeter? 15. Determine the calorimeter constant Ccal, which is the capacity of the whole calorimeter in J/°C using Eqn. 8.12. Note: You will use this value in future calculations. °C (8.12)