Monthly Archives: April 2015

Review Day 3

1.  Block 7 topics of the day:  Limiting reactants, Beer’s law, finding the Ka of an indicator.  See class scribblings here:  Block 7 Topics of the Day 3

2.  Block 8 topics of the day:  How is Hf related to bonding energy?  See class scribbling here: Block 8 Topics of the Day 3

Here are also some interesting “lab”-based topics/questions from 5 steps: Lab cookies which are also posted on the AP Chem Resources link

Good luck on Monday!  I will be rooting for you!  Remember to breathe….answer all the questions you know first, answer the questions you know but will take a bit longer next, leave the ones you are not sure about last.  Answer ALL the mc questions–narrow down your options and make your best guess if necessary!  Answer the free response questions clearly, showing calculations clearly and justifying your answers where necessary.

Review Day 2


Review topics for block 7:  VSEPR, Periodic Trends, Organic Chem.  See class scribblings here:  Block 7 Topics of the Day 2

Review topics for block 8:  PES (see practice questions in handout)

Review topics for Block 2:  Organic chem, Gas Laws, PES  See class scribblings here:  Block 2 Topic of the Day 2

3.  We finished marking the Ch20 test.  Do test corrections and hand back in.

See the posted exam schedule for time and location (Library or Rm314, arrive at 7:50am)

What to bring to the exam:  pencils, pens, eraser, 2 calculators (in case you run out of batteries), snacks for the break time,  photo ID (ie. GoCard)

What NOT to bring to the exam:  cell phones (leave in your locker)

Lab 20G Day 3

1.  Lab 20G Part 4:  Find the Ka of a weak monoprotic acid.  To do this, you will need to measure the pH of your weak acid.  By doing a titration against NaOH, you will calculate the initial molarity of the weak acid.  Fill in your Ka table and find the equilibrium concentrations of all your species.  Ta da!  Calculate the Ka.

Lab 20G – all parts due next class.

Note:  Test coming up soon!

Goal Day is on Tues. May 5.  Any incomplete assignments or retests should be completed on/by that day.

Review Day 2

1.  Review topic of the day

Block 7 – Kinetics, electron configurations, hybrid orbitals and multiple bonds Block 7 Topics of the Day

Block 8 – IMF and bonding Review Topic of the Day – Block 8

Block 2 – VSEPR, IMF, electron configurations, sigma and pi bonding Review Topic of the Day – Block 2

2.  Questions???

Where to get additional sample multiple choice questions:



Lab 11A

1.  Finish/hand in Elements Project

2.  I will be able to explain the periodic trends of size, ionization energy, and electron affinity.

3.  Finish notes for sec. 8.2 and 8.3 and Q#31-39, 45, 51

Also good practice:  Summary exercises #53-56

4.  Finish Lab 11A and questions and hand in.

5.  Quiz next week on periodic trends.

6.  Heads up: Test up to p.182 coming up soon!!

Retests for the Stoichiometry (Unit 7) test will be on Goal Day.  You need to do your test corrections and see me for tutorial help and practice questions.


Lab 20G Part 3

1.  Using the molarity of NaOH you calculated in Part 2, calculate the molar mass of your unknown monoprotic acid.  Show your work neatly and clearly!

2.  Complete the prelab for Part 4.

3.  Finish reading and doing questions in your workbook regarding titrations.

If you want to do a retest for the Ka test, you must complete your test corrections and see me for some extra practice.  The retest will be on Goal Day, May 5.

Periodic Trends

1.  Go over Worksheet:  “Coulombic Attraction” – any Questions?

2.  I will be able to explain how the size of the atom, ionization energy, and electron affinity change across the periodic table and down the periodic table.  See class scribblings here: Coulombic Attraction student notes and Zeff

3.  Finish reading section 8.2 and 8.3 and do Q# 31-39, 45, 51, 53

4.  Finish your Element projects.

5.  Begin Lab 11A in your groups.

Lab 20G Day 1

1.  For Part 1, calculate the molarity of the primary standard solution (oxalic acid dihydrate) you made.

2. For Part 2, calculate the molarity of the NaOH solution.  Show all steps!!

3. For next class:  have the prelab for Parts 3 and 4 ready.

don’t forget your Ka test corrections!