Attached below is a more detailed list and released AP FRQs of the topics we've covered for the final.  Of course review your notes as well.  Remember,to get to the released AP Chem questions you can follow this link (and scroll about half way down the page):

 

Study your notes and homework on atomic structure and chemical bonding over the past week

Complete the attached questions (Practice Atomic Structure) applying your understanding of Coulomb's Law as it relates to atomic structure.  Note that when we refer to ionization energy we are talking about the energy to remove the outermost electron (first ionization energy). When you see a reference to second ionization energy we mean the energy required to remove the next electron.  Third ionization energy would be the energy to remove the next one after that.  Keep in mind that each time you remove an electron, the positive charge of the nucleus can pull tighter on the remaining electrons (since there are less of them), and when removing an electron takes you down to the next lower energy level, the remaining electrons are now a closer distance to the nucleus.

Complete the following two questions relating to energy levels of the Hydrogen atom.  See attached file

For homework over the break, read and outline chapters 7,8, and 9 on atomic structure and chemical bonding.  We will look at these topics as we finish the fall semester.  If you don't have your book with you over the break, I will post an alternate assignment.  Keep checking

Assessment Today - Gas Behavior (current topic) and Solution Stoichiometry (review topic). 

 

Complete the AP Chem FRQ released questions handed out in class on Monday. I will write a "strategies" page like I did for the last one, but it will take me a day.  Look for the posting on Tuesday

 

Remember, we will have Enrichment on Wednesday morning and Assessment  on Gas Behavior (the new topic) and solution stoichiometry (review topic) on Friday.

Complete the AP FRQ Gas Behavior questions (2 sheets) passed out in class.  The best approach is to

Expt #7 Molar mass by vapor density method today.  Early start (7:15 am).  ASA due and pre-lab ready.

 

Also, finish the remainder of the gas law/gas stoichiometry questions from the class worksheet (except the last two).

I was not able to get a homework assignment up in a timely manner for tonight.  You should start reading Expt #7 to get an understanding of the lab technique and concepts.  Remember, we will have the early lab day this Thursday (ASA due and pre-lab ready on Thursday).

Read sections 5.6 through 5.9 of your text.  Outline these sections and copy each of the formulas and sample exercises.

 

The attached file includes practice/review of first year gas law problems.  Review Chapter 5 exercises and gas law formulas.  For homework tonight, complete questions 1-8 of the attached file.

Review Chapter 5 sections 5.1 through 5.3 and complete the attached worksheet on introductory gas law problems.  Answer key is included, but not the solutions to work them out.  That's your job.

We are ready to begin a study of gas behavior.  This subject is heavily quantitative. For homework, read your textbook sections 5.3 through 5.5.  Copy the sample exercises in those sections (there are 13 of them), and then copy the calculations and solutions to those problems.  Look them over thoroughly and  make notes for yourself on any calculation/solution that you feel you need extra help with and we will go over them together in class.

 

A note about the answer key to the "solution stoichiometry worksheet":  questions #1,3, 8, and 9 are all theoretical yield of a product based on limiting reactants.  In first year chem, we learned a certain way to attack limiting reactant problems.  This answer key shows an alternative way.  For each of those questions, the smaller answer is the correct answer.

7:05 am Extra Credit Enrichment today (even though it is an even day) 7:05 am start time.

Net Ionic Equations/Redox Titration.

 

 

 

Complete questions 1,2,4 from the attached Redox stoichiometry worksheet (include them with question #3 which you already did).  Also, write net ionic equations for the following: 

 

 

Have pre-lab ready (intro, materials methods, results data tables), including the optional "standardization of KMnO₄"  ASA is not due until Friday. We need more background first.

 

 

The attached file includes neutralization reactions for you to write balanced net ionic equations.  Use your strong acid and strong base rules from class today, and remember we do not dissociate weak acids or bases. Also, note that most of the reactions on the worksheet contain at least one weak acid or one weak base.  You only need to complete four questions of your choosing from #1 of the worksheet and three questions from #2 of the worksheet.

 

As a review of solution preparation and dilutions, complete selected questions from the attached file which includes four worksheets:

The assessment will feature two of the above topics. 

Just posted this at 1:30 pm on Tuesday. 

 

Write balanced net ionic equations for each of the following precipitation reactions.  A solubility table is attached below, but realize that you will need to become familiar with the rules as the AP exam gets closer.  No solubility table on the AP exam.

 

 

Complete (as best you can) the ASA for today's experiment "Colorimetric Determination of Copper."  Questions #2 and 4 are like the practice we did in class on Thursday.  Attachment below

 

Complete your pre-lab for the experiment as well: Introduction, Materials and Methods, and Results data tables.  Read the beginning parts of the additional attachment here titled: "Theory and Practice of Spectrophotometry..." to help with your introduction.  Note that the lab handout does not have data tables written for you.  As you read through the procedure, design your own data tables that would be appropriate.

 

Also complete net ionic equations for the other 4 precipitation reactions from the class handout (also attached below). #3,6,10,and 14.  Refer to your notes as needed.  we did #2 and 5 in class.

 

 

Read and outline sections 4.1-4.6 in your AP Chem text and complete the attached worksheets that review types of chemical reactions

 

Assessment Today - Chemical Composition (Empirical formula, molecular formula, percentage composition) using a variety of techniques and strategies including: combustion analysis, driving the water from a hydrate, and gravimetric analysis by precipitation. 

 

The assessment tests your understanding in three areas: conceptual understanding of empirical formulas and the lab techniques, calculations (empirical formula, molecular formula, % composition), and qualitative analysis of uncontrolled errors that would lead to your result being too large or too small (no quantitative error analysis this time).

 

Here are good resources to review:

Attached here are sample qualitative analysis of uncontrolled experimental errors as promised.  Both of them come from Thursday's enrichment.

• Finish the data analysis of your hydrated salt from lab today determining the formula for the hydrate. Note that since your data is experimental, it may not be super accurate and your mole ratio of water to salt may not be so close to a whole number for rounding.  Consider this, the greatest uncontrolled error you might have experienced today is not driving off all the water.  Think about the implications of that and how it would affect your mass values (too low or too high?) when you consider rounding up or down.
• Complete the data analysis for experiment #3 (go through the calculations to determine the empirical formula for the magnesium oxide product from lab last week). There was some confusion about this as homework the last time.
• Complete the two FRQ from class today: Hydrate (2008 #2a-c) and combustion analysis (2005 #3ai-iv)

For homework:

Early lab start today. 7:15 am.  Experiment #3 Determination of Empirical Formula. Have your pre-lab work ready (introduction, materials and methods, and results data tables).

 

Also complete two more combustion analysis problems from the "Composition of Matter" sheet: #7 (note SO2 gas is also released, and #8 (this one is tougher, but give it a try.  Get % compositions for each element before you get the amount of oxygen.  Then get oxygen by difference of the % compositions).

Today we did a quick review of determining empirical formulas from percent composition data.  For homework, complete question 1 (we did this one in class), 2, 3, 4, 8 from the attached file "Empirical-Molecular Formulas," and question 4 from the attached file "Composition of Matter."

 

Also, please bring your lab manual and lab notebook.  We need to put closure on Experiment #1.

Quiz Error Analysis of a set of data is postponed until next Monday.

 

Please print the kinetics page of the summer assignment, your own answer page for the kinetics, and the answer key which is posted here under files.

 

For homework, download and complete the attached worksheet which is a review of chemical formulas and names.  Search through chapter 2 for reference tables.

 

In class we will be going over Experiment #1 today, so please bring your lab manual and your lab notebook with the experiment.

Complete your outline of chapter 2 of the text and turn in today.

 

Today we will carryout Experiment #1 which you prepared for last Friday.  Please make sure everything is complete and ready to go. The Experiment #1 advanced study assignment is due at the beginning of the period.

 

We will go over error analysis of the "Thickness of Foil" if time permits today.  If not, then Thursday's quiz will be postponed.

Read Chapter 1 of Zumdahl (AP Chem text) and do challenge problems 85,88,90 page 35-36)

 

I will be out today.  Please bring your text book, lab manual and your college lab notebook to class today.  In class today we will:

 

Please read the AP Chemistry course syllabus, safety instructions, and the Laboratory Report Format found on the right side of this page under "Files." Complete the section of the syllabus that asks for names and signatures (should be on the third page) and the signature page for safety instructions and return both today.

 

Read Chapter 1 of Zumdahl (AP Chem text) and do challenge problems 82,83,84 page 35-36)

If you have not already submitted your final piece for the summer assignment (composition, reactions and stoichiometry), please email it to me today to avoid being late.