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C. Graves |
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AP Chemistry HomeworkAssignment: Worksheet #2 Omit 3
Remember H2O gas has 40.66 KJ more energy at 100o than H20 liquid, so if a rxn yields water the enthalpy change depends on the state of the water produced!!!!
Definition: The HEAT OF FORMATION OF A COMPOUND is the energy change when ONE mole of a substance is FORMED from its ELEMENTS at there STANDARD state.
1. D 2.A OMIT.B 4.C 5.A 6.C 7.E 8.B 9.D 10.A 11.A 12.E 13.B 14.B 15.What is delta H?C 16.D 17.D 18.E 19.E 20.C 21.C 22.C 23.D 24.D 25.B 26.D 27.B
Wednesday: Lab Thermo
Assignment:
Thursday: Lab Thermo
Assignment: Read "Calorimetry" p.250-253 and solve this problem:
300 mL of 0.2 M aqueous KOH neutralizes 150 mL of aqueous 0.2 M H2SO4. We go from an average initial temperature of 22.3 oC to a maximum of 29.2 C. Calculate the molar heat(enthalpy) of neutralization of KOH.Also if you have any questions on your lab report you need to ask tomorrow. In q=m x c x ΔT, c= 4.18J/goC for the lab and the above problem. Be sure your have finished all of Chapter 6 Worksheet 2
Friday: Finish Chapter 6. Test on Tuesday. Lab Report due on Monday
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