Main

November 30, 2008

thermo websites to visit for additional help

http://www.wwnorton.com/college/chemistry/gilbert/overview/ch13.htm http://www.chm.davidson.edu/java/calorimetry/calorimetry.html, or http://dbhs.wvusd.k12.ca.us/webdocs/Thermochem/Thermochem-WS1.html.

Also http://www.emsb.qc.ca/laurenhill/science/morecalorimetry.html

Nice reading is found at http://www.intute.ac.uk/sciences/reference/plambeck/chem2/p02051.htm

Thermochemistry and Thermodynamics

This unit includes chapters 5 and 19. Chapter 5 will be a quick review of energy concepts learned in honors while Chapter 19 expands upon those concepts into new territory.

Chapter 5 suggested Lemay and Brown problems include 37, 41, 43, 51, 53, 61, 63, 69, 71, and 73.

The problems for chapter 19 include 23, 27, 33, 39, 41, 43, 49, 53, 55, 57, 63, 75, 77, and 79.

We will test on thermo on either Friday 12/12 or Monday 12/15. The class will decide on the better date.

November 24, 2008

Acid/Base Test 12/2

We decided to wait and have the test on acids and bases on Tuesday, December 2. I will entertain questions on December 1 and then be ready to move into the thermo unit.

The acid/base ASA's will be due on Tuesday, 12/2, as well.

Happy Thanksgiving!

I hope that each of you will have a wonderful holiday with you families. Take the time to appreciate them and know how very much you are loved and a part of a special group. Know that I am thankful for each of my students, too.

November 16, 2008

acid base titration

AP folks, I am looking toward your cool titration lab which we'll start on Monday. We voted to test on Tuesday 12/2. I found http://www.dartmouth.edu/~chemlab/techniques/titration.html which has a great visual series of explanations of what we will do in lab. I'll post more here as I encounter other sites of good use.

A second Dartmouth site is http://www.dartmouth.edu/~chemlab/techniques/buret.html

Another good reference tool is http://dbhs.wvusd.k12.ca.us/webdocs/AcidBase/Lab-AcidBaseTitration/Lab-AcidBaseTitration-FAQ.html

The titration ASA, which counts toward your quiz average, will be due on Friday, 11/21.

Please recall that you will have a titration quiz on Tuesday, 11/18. Bring your calculator and be sure that you have practiced the methodology for solving such problems.

Juniors Preparing for Science GHSGT

Juniors, if you are preparing for the Georgia High School Graduation Test, please visit http://www.myskillstutor.com. Once there, your user name is your lastnamefirstname - no spaces, no punctuation. First time through, your password is a blank. You can set one once you're in. I have signed you up for the review to help you prepare for the graduation test. The review can be taken at your own pace and of course doesn't count toward your grade. I know you all will do well and expect pass-plusses from all of you. The graduation test will occur in March and you'll be enrolled up until that time.

November 13, 2008

Solutions Test Thursday, November 20

Your test on solutions will be on Thursday, November 20.

Honors students, your test is on chapter 15, solutions. This includes reading a solubility graph/table, working molarity problems, working dilution problems, preparing solutions, understanding and working Henry's Law, solving freezing point depression problems, solving boiling point elevation problems, and knowing the vocabulary terms for this chapter.

We will continue our learning this week. I have planned several labs during the week. One is the famous ice cream lab which you will no doubt enjoy. In order to perform this lab, you must understand the colligative property concepts.

We will be in lab on Friday and Monday. Plan your footgear accordingly.

November 12, 2008

acid/base websites to peruse

AP folks, here are some websites I encountered while preparing for your class. They may serve to enhance your understanding of concepts in the acid/base unit.

First is http://www.chemistrygeek.com/chem2.htm and scroll down to the acid/base study guide.

Next, I found http://www.chemmybear.com/stdycrds.html, a location where you can print study cards on a variety of AP topics.

Then, on to http://www.sciencegeek.net/APchemistry/APtaters/directory.shtml with two acid/base chapters.

Another is http://www.shodor.org/unchem/basic/ab/index.html

I'll end tonight with http://www.wwnorton.com/college/chemistry/gilbert/overview/ch16.htm, a site I like that provides great explanations as you continue to click through the tutorials at your own pace.

November 10, 2008

Acid/Base additional questions

Students, please click here Download file for additional acid/base questions. I will make the FRQ answers available to you in class.

Download file

Download file

I will have hard copies in my classroom for you.

Acidic? Basic? Neutral? How do we know?

AP students, the unit on acids and bases involves chapters 16 and 17 in Lemay and Brown. Problems include chapter 16 numbers 19, 21, 27, 31, 37, 39, 41, 45, 47, 53, 55, 59, 63, 75, 83, 85, and 101. Those in chapter 17 are 17, 21, 25, 33, 37, 39, 41, 43, 44, 49, 51 and 67.

The lab I do in honors online is http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/stoichiometry/acid_base.html if you'd like to take a preview at titration.

There will be 2 UTexas postings shortly. I'm looking at testing on Thursday, November 20.

EQ: How do the equilbria concepts relate to acid/base chemistry? What sorts of predictions can be made regarding laboratory titrations?

October 29, 2008

FPD Lab Notebooks

Your lab notebooks with the freezing point depression determination of molar mass are due on Friday, October 31 (spooky!). Recall that you have the unknown information provided in class. You'll need to calculate percent error, based on the identity of your unknown in PDB.

UTexas assignments for this unit are up and available. Due date is 11/5 at midnight.

Equilibria problems are notoriously tricky. Be sure you're working problems.

The test on kinetics and equilibrium is on Friday, November 7.

equil/kinetics packet

The kinetics/equil packet is here Download file

Answers to the packet for kinetics/equilibrium multiple choice are as follows:

1 B 2B 3C 4E 5B 6A 7D 8B 9B 10B 11B 12D 13A 14D

October 25, 2008

Kinetics - zoom!

Students, please visit http://www.chm.davidson.edu/ChemistryApplets/kinetics/IntegratedRateLaws.html for an interactive application for kinetics that you may find enhances your understanding.

A second place to visit is http://www.wwnorton.com/college/chemistry/gilbert/overview/ch14.htm where you will find further explanation about kinetics.

A third site which really helps to understand the different graphs associated with integrated rate law is found at http://www.chem.purdue.edu/gchelp/howtosolveit/Kinetics/IntegratedRateLaws.html

This unit encompasses chapters 14 and 15, kinetics and equilibrium. Suggested problems for chapter 14 include 7, 15, 19, 23, 25, 29, 31, 37, 45, 47, 51, 53, 55, 61, 65, and 67. Suggested problems for chapter 15 are 13, 17, 19, 23, 25, 27, 29, 31, 37, 39, 41, 43, 49, 51, and 53. Do remember that these are merely suggestions of the problems you might want to work. There is nothing to stop you from working as many as you like. In fact, I encourage you to work many to ensure that you understand the concepts fully.

I will give you a packet later this week which includes the excess AP exam questions. Two new sets of UTexas problems will be available. We'll discuss a plausible test date.

A site for help with equilibrium problems is http://www.chem.vt.edu/chem-ed/courses/equil/toc.html . Only look at parts I, II, and III for now. You may refer back to this in the next unit for acids and bases.

A second explanatory site for equilibrium is http://www.shodor.org/UNChem/advanced/equ/index.html.

October 19, 2008

Reminder - Alkaline Earth Labs due Monday : )

Please recall that your Alkaline Earth Metal/Halogen labs are due on Monday. We'll go to lab Monday and Tuesday and answer questions you may have from the liquid/solid/IMF unit. UTexas questions are due on Monday night, should you choose to do them.

October 18, 2008

powerpoints and sites to help

AP students, do visit http://www.tvgreen.com and click on AP. There you'll find powerpoints that correspond to each of the chapters in the Zumdahl text. They can be helpful.

Another location is http://www.utmem.edu/physpharm/.009.html

I also visited http://www.sparknotes.com/chemistry/solutions/colligative/section1.html as well as http://members.aol.com/profchm/raoult.html

The test over chapters 11 and 13 will be on Wednesday, October 22

October 14, 2008

* P * R * O * M *

The date and location of the prom have been determined. Please make a note on your calendars for March 14, 2009 at the Buckhead Westin Hotel, near Lenox Square Mall.

October 11, 2008

Chapters 11 and 13

AP students, this unit encompasses chapters 11 and 13. Chapter 12 looks to be an amazing unit on polymers and ceramics and nanotechnology; however, we just won't have time to cover it in class. I plan to read it myself because it looks fascinating!

In chapter 11, read pp. 437-458 well. When you get to section 11.7, Structure of Solids, you may skim. Pick back up on your reading in earnest pp. 464-470.

In chapter 13, read pp. 526-556 well. You may scan the section on colloids from pp. 556-561.

Homework for chapter 11 includes 2, 5, 6, 9, 11, 15, 17, 19, 23, 24, 29, 33, 35, 37, 39, 45, 47, 53, 71, 77, and 79.

Homework for chapter 13 includes 12, 13, 15, 21, 23, 27, 35, 37, 39, 41, 43, 45, 47, 49, 59, 61, 65, 67, 69, 71, 73, and 75.

We'll complete the alkaline earth metal lab on Monday and begin the new unit. Lab notebooks with entries for the alkaline earth/halide lab are due on Monday, October 20.. The test on Chapters 10 and 11 will be determined as we progress through the unit.

There will be one UTexas set of problems this time. I'll have it up and running shortly.

Calculators should be an appendage of your bodies which you bring with you to class on a daily basis.

October 08, 2008

Alkaline Earth Metal Lab

AP folks, we'll be performing the Alkaline Earth Metal Lab on Thursday and Friday of this week. Come prepared to work in lab. I'm working on grading your bonding tests.

September 28, 2008

Periodicity

See http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/matters/periodicTbl2.html for a cool animation about trends.

Also, I've been posting links for honors that are definitely related for you. Feel free to click on any of the links to attain further understanding about polarity, hybridization, and VSEPR among other topics.

More Weblinks to help

A link for VSEPR theory and shapes is http://www.up.ac.za/academic/chem/mol_geom/mol_geometry.htm

Another nice spot is http://www.elmhurst.edu/~chm/vchembook/200molecgeom.html

Bonding Test Tuesday October 7

AP students, please know that your bonding unit test over chapters 6, 7, 8, and 9 is on Tuesday, October 7.

Work as many problems as you can get your hands on. Scroll back to an early post this semester to find a Zumdahl website with a practice test.

September 23, 2008

Virtual Labs - Less Mess?

Hey y'all! We "performed" two virtual labs in class yesterday. Two separate reports are due from each of you for the two labs - one dealing with arsenic and one dealing with combustion of a hydrocarbon. They DO NOT go in your lab notebooks. What should you include? Refer to the last paragraph on each lab. Both of these virtuals are due on Friday, October 3, and will count as 2 separate grades for your lab average. Don't procrastinate!

September 21, 2008

Help for understanding bonding better

Students, please visit http://www.wwnorton.com/college/chemistry/gilbert/overview/ch7.htm for some further information on bonding, hybridization, and sigma and pi bonds.

Also try http://antoine.frostburg.edu/chem/senese/101/periodic/ for a nice explanation on periodic trends. A second site is http://members.aol.com/profchm/periodic.html

A site for atomic radii discussion is http://www.chemguide.co.uk/atoms/properties/atradius.html

I am posting these early in hopes that some of you may get ahead.

Atomic Structure

Our unit will encompass 3 chapters, 6-9. Chapter 6 involves electron configuration. Chapter 7 deals with periodicity. Chapters 8 and 9 include bonding information. You only need to read pp. 341-368 in Chapter 9 as the remainder deals with molecular orbital theory which goes beyond what we need. Feel free to read it, of course, it you'd like to do some self-study.

EQ: How does the structure of a species impact its behavior? How are valence electrons and Lewis structures related?

Chapter 6 suggested problems include 15, 17, 21, 33, 35, 49, 51, 53, 64, 67, 71, and 77.

Chapter 7 suggested problems include 15, 23, 27, 31, 41, 45, 49, 67, and 71.

Chapter 8 suggested problems include 9, 11, 21, 27, 35, 37, 39, 45, 48, 53, and 55.

Chapter 9 suggested problems are 15, 17, 23, 25, 31, 33, 35, 37, 43, 47, and 51.

Water of Hydration and Molar Mass Labs

We will complete the Molar Mass Lab on Tuesday. Please notice that there are a good number of questions at the end of the handout, which will be expected to be submitted in your lab notebook. Be sure you answer them or note they were answered in your data/calculations.

I will take up your notebooks on Monday, September 29. You should have both the Water of Hydration lab AND the Molar Mass labs in them, in their entirety. You will receive two lab grades for them.

September 12, 2008

Subatomic Particle Physics

In response to Danielle's question, see http://www.youtube.com/watch?v=j50ZssEojtM

It is youtube so you'll have to view it at home instead of school. It is a fun and informative video about the Large Hadron Collider.

I am continuing to workon UTexas. Please let me know when you are able to retrieve.

September 11, 2008

Additional Info on Gases

AP students, you might try http://www.wwnorton.com/college/chemistry/gilbert/home.htm Once there, you will need to locate the gas chapter (8) for more information on gases and the laws that govern them. This site has information on other units as well. Enjoy!

Boyle's, Charles', Gay-Lussac's, Dalton's, Ideal.....

This unit gives us gas laws which is not a topic many of you have seen.

Chapter 10 suggested problems include 11, 15, 19, 23, 25, 31, 35, 37, 41, 45, 49, 53, 57, 61, 65, 75, 77, 79, 91, 93, 95, 107, and 112

Try these and let me know in class which are vexing you.

EQ • How does the kinetic molecular theory describe ideal gas behavior?
• How are the pressure, volume and temperature of a gas related?


There is a UTexas set of problems up that was posted 9/8. It is due midnight 9/17. Read chapter 10 in preparation for this unit. The test on gases will be Friday, September 19.

September 05, 2008

Test Monday

Students, do recall that you have a test on Monday.

Honors folks, yours is over chapters 3 and 11 regarding atomic structure, atomic theory, wavelength, frequency, energy, electron configuration, quantum numbers, atomic mass, and isotopes. Use your notes as a guide for studying.

AP folks, yours is over chapter 4 which involves reactions including oxidation/reduction, net ionic equations, and all sorts of reaction predictions.

Spend a portion of your weekend preparing. See you Monday!

September 03, 2008

UTexas Extension

AP students, I am moving the due date of the UTexas homework to Thursday night because I will be out sick tomorrow. By day's end, I could barely speak and am wiped out. We will push the test to Monday. We'll continue lab on Friday. We'll also push the quiz to Friday.

September 01, 2008

Reaction Prediction/Balancing, Take Two

Please expect a second quiz on reactions on Tuesday, 9/2, and a third quiz on Friday, 9/5. Be sure you are staying on top of things by working problems. The test on reactions is Friday, September 5. UTexas is up and will be due Thursday night, 9/4. Remember that the UTexas assignments are not mandatory and count only as extra credit toward your test score.

August 29, 2008

Registering for Quest

Step 1: visit http://cns.utexas.edu/quest/support/student/ where you can register for the University of Texas Quest system of homework. where you can create a University of Texas electronic identification (EID). Once there, scroll down to click on http://www.utexas.edu/eid and select "Get a UT EID" on the left of the screen. Our class number is 99200.

Step 2: visit http://cns.utexas.edu/quest/student/aboutQuest.pdf Once this document is downloaded, it responds to your questions regarding the service.

Step 3: Once in, you can download your homework (equations) that corresponds to chapters 4 in your textbook.

Step 4: To enter answers for grading, log back in and select that option. The more you "guess," the more you are penalized. The program does deduct for too many incorrect responses.

Having problems still? Let me know. UTexas problems will go as extra credit points toward your exam scores. This homework is due on Wednesday, September 3.

August 27, 2008

Assigning Oxidation Numbers

Please visit with me http://nobel.scas.bcit.ca/resource/ Once there, at the bottom of the page, click on "oxidation number rules" button. There, you will find that in combinations of nonmetals not involving hydrogen and oxygen, the more electronegative element is considered to be negative. N is more electronegative than C. What does that tell us for the species CN^-1? How about for CNO^-1?

+1+7 -2 +1 +2 -3 +1-2 +4 -2 +1 -2 +1 +1 -2 +4 -3
KMnO4 + KCN + H2O ==> MnO2 + KOH + KOCN


We will balance redox equations on Thursday. Be sure that you are working problems in your text.

August 25, 2008

Chapter 4 Reactions

Chapter 4 suggested problems include 15, 18, 19, 23, 33, 39, 43, 49, 51, 53, 57, 61, 73, 77, and 89

There area a few problems in Chapter 20 (pp. 843-50) which we will also learn in these units. Problems include 11, 13, 15, 17, and 21.

This unit offers many opportunities for quizzes so do stay on top of your work to ensure that you are prepared.

Lab notebooks are due on Wednesday, August 27. Be sure to determine a percentage error or a percentage yield. Show your calculation in your notebook. Give an analysis/conclusion of your data including specific reasons for error.

EQ: • How are the products of chemical reactions predicted?

How are chemical reactions symbolically represented based on the Law of Conservation of Matter?

August 24, 2008

Quiz on Wednesday - the first of several : )

AP friends, we will have a quiz on Wednesday over double replacement reaction prediction and stoichiometry. It will not include oxidation/reduction although subsequent quizzes during this unit will. Happy studying!

August 17, 2008

Organic Practice

AP folks, please consult the following for practice on nomenclature and formula writing of organic compounds. Also, your textbook problems cited in a previous blog post are good practice. Your organics will not be as tough as some that you see on these sites.

http://www.cem.msu.edu/~reusch/VirtualText/nomen1.htm

http://www.chembio.uoguelph.ca/educmat/chm19104/organic_nomenclature_quizzes.htm

http://www.sciencegeek.net/APchemistry/APtaters/alkanes.htm

http://www.chemhelper.com/practicetests.html

August 14, 2008

sites to visit for information

Do you know those pesky AP multiple choice questions that ask about the color of various materials and reactions in lab (i.e. color of dichromate)? I am trying to locate some visual cues to help us out for those things we don't actually witness in lab.

Try out http://www.chem.ox.ac.uk/vrchemistry/LiveChem/transitionmetals_content.html and let me know what you think. : )

I also found a site for Zumdahl practice tests. Visit http://college.hmco.com/chemistry/general/zumdahl/world_of_chem/1e/students/ace/index.html for your test prep. Let me know if it is helpful.

I found http://www.chemmybear.com/stdycrds.html, a location where you can print study cards on a variety of AP topics.

Organic Quizzes

We agreed in class today to have a couple of organic nomenclature/formula writing quizzes on August 19 and 20. You are responsible for alkanes, alkenes, alkynes, cyclic structures, and the functional groups we discussed in class.

August 13, 2008

AP Lab

Enjoying those new books, students? Be sure that you take the time to look over the problems to ensure that you are proficient with the problems we've been working in class.

We will have a two day lab involving the conversion of copper. As you prepare for school, dress accordingly and wear closed-toe shoes. We'll start this lab on Friday, August 15. Have your lab notebooks ready with procedures already written. Reminder: page 1, title page, no number; pages 2 and 3 are table of contents with numbers; page 4 should be the first page of the copper lab. Only write on the fronts of the pages and number them all.

Plan for our first unit test to be on Friday, August 22, over chapters 1, 2, 3, and 25 in Lemay and Brown.

AP Chs 1-3 Review from First Year Chem plus Ch 25

Greetings gang! We will be moving through the first three chapters of your Lemay and Brown Chemistry: The Central Science text rather rapidly. Come to class prepared to ask questions on any concepts that don't come back to you easily or that you weren't comfortable with the first go round.

Homework problems in this course are always suggested ones. I will not check your homework. There is a correlation between doing the homework problems and your performance on assessments. Incidentally, just because these are the problems that I suggest, you are by no means limited to doing only these. Knock yourself out and work as many or as few as you need to succeed.

Chapter 1: 15, 17, 27, 35, 39, 44, 58, 64
Chapter 2: 22, 23, 25, 27, 31, 49, 53, 55, 57, 59, 65, 57, 69, 71, 93
Chapter 3: 11, 13, 17, 19, 23, 33, 39, 43, 49, 51, 53, 57, 61, 73, 77, 89
Chapter 25: 6, 8, 13, 21, 39, 43

Answers to some questions are found in the back of your textbook. I have solutions manuals which have answers to other questions. The solutions manuals are on the bookcase in the front of my room and you can check them any morning before school as well as many other times.

Be sure you have a good scientific calculator. Happy problem solving! Do remember we are looking at testing on Friday, August 22 so be sure you're working problems.

August 12, 2008

Website for Help/Review for Everyone

Please know that you are free to visit http://www.sciencejoywagon.com/chemzone/lessons/ at any time. Please bookmark this location. Honors students, this may be a good site for you to visit to expand your knowledge. AP students, this may give you needed reinforcement for ideas you're hazy on from first year chemistry. You will need a username and password that I am happy to provide to you. Stop by my desk and ask if you're interested : )

August 11, 2008

lab notebook guidelines

Folks, consult http://www.ruf.rice.edu/~bioslabs/tools/notebook/notebook.html for more details on preparation of your lab notebook.

Another site to consider is http://www.dartmouth.edu/~chemlab/info/notebooks/how_to.html

Yet another helpful site is This website may assist you with the layout of your lab notebooks http://home.clara.net/rod.beavon/lab_book.htm

Aim for having your abbreviated procedures for the copper lab in your lab notebooks by Friday, August 15.

August 10, 2008

an interactive website

While some of the quizzes on this website may be beyond you or possibly beneath you, this website does offer you the opportunity to try lots of different types of problems.

http://lrc-srvr.mps.ohio-state.edu/under/chemed/qbank/quizmain.htm

I encourage you to bookmark this site and use it for extra practice. Enjoy!

August 09, 2008

AP Preparation

I would like to offer some sites for help as I know there are some of you out there who would like to get a jump on the semester.

http://www.geocities.com/crazytwo2000/

http://www.adriandingleschemistrypages.com/
This teacher had all of his students make 4's and 5's on the exam . Amazing resource!

http://www.chem.uic.edu/marek/apintropage/ap_notes/ap_notes.htm

http://tvgreen.com/
This site correlates to the Zumdahl book most recently used by Cobb County.
http://www.wwnorton.com/college/chemistry/gilbert/home.htm

August 08, 2008

Ready for a new adventure?

Greetings AP students! I am elated to have the opportunity to teach you AP Chemistry this coming semester. In preparation for our course, you might want to consult http://home.earthlink.net/~ssbeaton/addlinfo/polyions.html for a list of the polyatomic ions you MUST know.

Another place for you to visit and learn is http://members.tripod.com/~EppE/soluble.htm, a list of the solubility rules. It is essential that you learn those as well in order to master the AP exam successfully.

You will need a scientific calculator for this course. You also need a positive attitude and a desire to learn. We will move at a rapid pace and I expect you to be engaged in AP Chemistry on a daily basis, both inside the classroom as well as outside. Daily reading and problem solving is essential to your success.

Enjoy your holiday. See you in August, ready to rock and roll!