Monthly Archives: April 2015

Ch20 Test

1.  Hand in chapter 20 Notes and ch20 Review Worksheet (marked, corrected, reflection)

2.  Ch20 Test (yes, your last one for high school!)

Next class:

bring study materials to review (ie. notes, study guides, etc.)

print out any study materials you think are useful (lots online!)

print out sample AP exams for practice

Periodic Table

1.  Quiz on Bohr Model and Quantum electron configurations.

2.  I will be able to explain how the Periodic Table is organized.

3.  I will be able to explain how the size of the atom and the ionization energy of an atom changes across the periodic table and down the periodic table.  See class notes here:  The KeySecret to Periodic Trends (and all of chemistry)

4.  Do:  Worksheet “Coulombic Attraction”  11 Coulombic Attraction-S

5.  Read sections 8.2 and 8.3 and add more information to your Column Notes.

6.  Do:  # 31-39, 45, 51, 53

Ch20 Review and Practice Q’s

1.  Mark, do corrections, reflect on the ch20 review worksheet.  Answers were posted last class.

2.  Sample AP Question:  2014 Free Response Q#3.  You have 20 minutes to answer this question.  How did you do?


Quantum Chemistry – more electron configurations

1.  Video:  “Dr. Quantum”:

2.  Mark Parts of the Atom WS and Quantum Mechanics #1 WS

3. I will be able to write full and core electron configurations for atoms and ions.  See class scribblings here:

4.  Begin Element Personal Ad Project  Element Personal Ad Project

some websites to start your research:


5.  Quiz next class on drawing Bohr model diagrams and writing quantum electron configurations.



Lab 20C

1.  Hand in Titration Worksheet #2.

2.  Do: Lab 20C.  You want to have the volume of NaOH used to be withing +/- 0.10M.  Take an average of the volume NaOH used.  If the [NaOH] = 0.482M, what is the molarity of HCl?  Show your work neatly and clearly.  Lab is due next class.


Demos and Review

1.  Demo:  Energy Stick – can you conduct electricity?

2.  Demo:  Electrolytic Cells

a. KI (aq)  – one electrode turns phth pink, the other turns brown/yellow.  Why?

b. ZnSO4(aq) – one electrode has bubbles, the other turns silver colored.  Why?

c.  electroplating a key or coin with copper

3.  Finish the ch20 review worksheet and mark you answers at home.  See answers here:   Ch20 review worksheetBring questions to next class!

4.  Test on Friday!

Review of Ch20

  1. Students can pick up their ch19 test and mc bubble sheet and do corrections for the written section (in their block folder). The answer key is from the 2009 and 2007 AP Exam and they can look up the scoring guidelines if they have questions about how their paper was marked.
  2. Finish notes for ch20
  3. Finish ch20 Review Worksheet for next class (will be marked)
  4. Ch20 Test next week!