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AP Chem 360
Hess' Law Lab
Calculations: (Complete calculations as stated in lab including Pre-Lab Exercises)
Accepted value is -101kJ/mole
Questions:
1. What two assumptions did you make in your calculations?
2. What one large assumption are you making about the flow of heat in the system and how does affect your calculations?
3. Except for making students measure (including volume & mass), how could you decrease the error in this lab? Explain both in terms of the lab and how it affects the calculations.