Saturday, January 24, 2015

Week 21 (Jan. 20 - Jan. 23)

On Tuesday, students in Period 2 took a quiz on Chapters 11 and 12. On Wednesday and Thursday, students in Periods 2 and 3 learned about the properties of solutions (Chapter 13). On Friday, students in Period 3 took a short quiz on Chapter 13 and received a packet on Chapter 14 (Chemical Kinetics).
  
Homework for Period 2: Finish Mastering Chemistry (Chapter 13) and study for the quiz on Chapter 13.

Homework for Period 3: Work on the Chapter 14 packet.

On Tuesday, students in Period 4 finished their packet on Kinetic Molecular Theory and Gas Laws and worked on a practice quiz for homework. On Thursday, students in Period 4 took a quiz on the KMT and Gas Laws.

Homework for Period 4: You just took a quiz, so no homework. Next class you will learn about the ideal gas law and stoichiometry of gases.

On Wednesday and Thursday, students in Periods 5, 7, and 8 learned about the ideal gas law and gas stoichiometry. On Friday, students in Periods 5 and 7 did a lab experiment in which they reacted magnesium with hydrochloric acid to produce hydrogen gas. They calculated an experimental value of the ideal gas constant (R).

Homework for Periods 5 and 7:   Review the practice quiz you received in class on Friday. You will have a quiz on Tuesday.

Homework for Period 8:   Review the packet on ideal gas law and stoichiometry. We will do a lab on Monday.

Saturday, January 10, 2015

Week 19 (Jan. 5 - Jan. 9)

On Monday and Tuesday, students in Periods 2, 3, 4, 5, 7, and 8 reviewed the questions from their midterm exams.

On Wednesday and Thursday, students in Periods 2 and 3 began to explore the concepts in Chapter 11 (Liquids and Intermolecular Forces). On Friday, students in Period 3 continued to study Chapter 11 and also received a packet for Chapter 12 (Solids and Modern Materials)

Homework for Periods 2 and 3: Work through the Chapter 11 packet, and complete your Mastering Chemistry assignment on Chapter 11, which is due on Tuesday morning. Looking ahead, there should be a quiz on Chapters 11 and 12 on Thursday/Friday.

On Thursday, students in Period 4 learned about Lewis electron dot structures and molecular geometry/shapes, as it relates to VSEPR theory. 

Homework for Period 4: Study your notes from Thursday's class, and be prepared for a quiz on Lewis dot structures and molecular geometry. You should be able to draw the Lewis structure for a molecule or ion, and then tell me what shape it should have (tetrahedral, trigonal planar, trigonal pyramidal, linear, or bent).

On Wednesday and Thursday, students in Periods 5, 7, and 8 began to explore the properties of gases and the kinetic-molecular theory. On Friday, students in Periods 5 and 7 saw examples of the diffusion of gases at different speeds (NH3 vs. HCl) and saw examples of the relationships between pressure, volume and temperature.

Homework for Periods 5, 7, and 8: Continue to work on the packet that covers the kinetic-molecular theory and gas laws. Looking ahead, there should be a quiz on gases on Thursday/Friday.