Thursday, 23 January

In class

  1. Answer the Heats of Formation Wake Up.
  2. Discuss your answers to Part 3 of the Bond Enthalpies problem set.
  3. Finish review of the fall term final exam.
  4. Decide upon a day to take the thermochemistry unit exam.

Assignments

  1. I’ve assigned the Thermochemistry Unit Progress Check in APC. Work the MCQ section before class tomorrow and come with specific questions as necessary.

Wednesday, 22 January

In class

  1. Answer the Bond Enthalpies Wake Up exercise.
  2. Review your performance on the final exam and ask any questions.

Assignments

  1. Finish your work on the Part 3 calculations of the Bond Enthalpies problem set.

Tuesday, 21 January (Start of the Spring Term)

In class

  1. Share your thoughts and comments about the final exam.
  2. Learned how to use average bond enthalpy values to calculate the energy change in a chemical reaction.

Assignments

  1. Research and calculate a value for Part 3 in the Bond Enthalpies problem set by the start of class on Thursday.

Friday, 10 January

In class

  1. Conduct your calorimetry experiment and submit the paper.

Assignments

  1. Rest, review, and relax to be ready for your final exams next week. Best of luck.
Finish strong, everyone.
Finish strong, everyone.
Finish strong, everyone.

Thursday, 9 January

In class

  1. Finish your one-page summary and practice questions and give to me. I’ll scan them and upload a final draft here by the end of the day.

Wednesday, 8 January

In class

  1. Ask any questions about the experimental set up for your lab practical on Friday. (Equipment, set up, calculations, etc)
  2. Complete your hand-written/drawn one-page summary of your group’s assigned unit and submit (if possible) so I can combine and upload a copy for each of you.

Assignments

  1. Keep reviewing for the fall term final exam.

Tuesday, 7 January

In class

  1. Ask any questions about exercises 64 – 66 in Chapter 9.
  2. Form your lab working group for the final exam practical on Friday and ask any questions regarding the logistics.
  3. In your groups, create a one-page summary for your assigned unit.

Assignments

  1. Begin reviewing for the final exam. I suggest using the Barron’s AP Chemistry book.
  2. Bring your Barron’s prep book with you to class tomorrow to aid in your one-page summaries.
A one-page summary is an incredibly powerful technique to review large amounts of information and aid in the review process.
A one-page summary is an incredibly powerful technique to review large amounts of information and aid in the review process.
A one-page summary is an incredibly powerful technique to review large amounts of information and aid in the review process.

Monday, 6 January 2025

In class

  1. Welcome back and Happy New Year!
  2. Let me know your preferences about MCQ exam questions for the Spring Term.
  3. Use Hess’s law to determine the enthalpy of reactions that may be difficult to measure in the laboratory.

Assignments

  1. Complete exercises 64 – 66 in Chapter 9.
  2. Read section 9.4 up to the middle of p. 459.
Hess’s law is another example of the utility of enthalpy being a state function.
Hess’s law is another example of the utility of enthalpy being a state function.
Hess’s law is another example of the utility of enthalpy being a state function.

Friday, 20 December

In class

  1. Show me your attempts on the textbook exercises and ask any questions that you still have.

Assignments

  1. Enjoy your winter break! See you in 2025.

Thursday, 19 December

In class

  1. Investigate standard heats of formation and use them to calculate the energy change for any chemical reaction.
  2. Discuss and review your work on the kinetics unit exam.

Assignments

  1. In your notebook work out an answer for Exercises 61, 67, and 68 in Chapter 9 before the start of class tomorrow.

Wednesday, 18 December

In class

  1. Write an equation that represents the first law of thermodynamics and the relationship between energy, heat, and work.
  2. Practice writing and calculating with thermochemical equations.

Assignments

  1. Read pages 445 – 449 in your textbook discussing standard enthalpies of formation.
Carnot engine diagram (modern) – where an amount of heat QH flows from a high temperature TH furnace through the fluid of the “working body” (working substance) and the remaining heat QC flows into the cold sink TC, thus forcing the working substance to do mechanical work W on the surroundings, via cycles of contractions and expansions.
Carnot engine diagram (modern) – where an amount of heat QH flows from a high temperature TH furnace through the fluid of the “working body” (working substance) and the remaining heat QC flows into the cold sink TC, thus forcing the working substance to do mechanical work W on the surroundings, via cycles of contractions and expansions.
Carnot engine diagram (modern) – where an amount of heat QH flows from a high temperature TH furnace through the fluid of the “working body” (working substance) and the remaining heat QC flows into the cold sink TC, thus forcing the working substance to do mechanical work W on the surroundings, via cycles of contractions and expansions.

Tuesday, 17 December

In class

  1. Take the kinetics unit exam with your partner.

Assignments

  1. Finish reading sections 9.1 and 9.2 in the textbook.
  2. Begin reading section 9.3, p. 441 – 445, stopping when you get to the section titled Standard Enthalpy of Combustion.

Monday, 16 December

In class

  1. Ask any questions on the calculations for the heat of neutralization experiment.
  2. Calculate the amount of energy needed to convert a 5.0 kg sample of ice at -5 C to steam at 120 C.

Assignments

  1. Make yourself ready for the kinetics exam in class tomorrow.
  2. Printed copy of your CER paper due on Friday.

Friday, 13 December

In class

  1. Set up your experiment and collect temperature change data to determine the enthalpy of neutralization. You will want to run at least three trials to get good data, but I recommend carrying out the calculations after the first trial and comparing your enthalpy change (measured in kJ/mol) to the accepted value.
  2. Begin writing a CER paper for this experiment and your results. This will be due at some point towards the end of next week.

Assignments

  1. Continue your review for the kinetics exam on Tuesday next week.

Thursday, 12 December

In class

  1. Measure the heat of a neutralization reaction by utilizing the technique of calorimetry.
    • Answer the pre experiment questions.
    • Study the experimental set up and procedure.
    • Begin data collection if time allows.

Assignments

  1. Begin reading Chapter 9 in your textbook.
  2. Continue to review for the kinetics exam on Tuesday next week.
While not as accurate as professional grade calorimeters, styrofoam or paper cups can be modified to do a pretty good job.
While not as accurate as professional grade calorimeters, styrofoam or paper cups can be modified to do a pretty good job.
While not as accurate as professional grade calorimeters, styrofoam or paper cups can be modified to do a pretty good job.

Wednesday, 11 December

In class

  1. Take the exam day survey if you didn’t do so yesterday. I need a complete data set! 😉
  2. Ask any questions you have on kinetics before the exam on Tuesday, 17 December.
  3. Review the basic concepts and terminology of thermochemistry.