Karen Heiges

Tue, 16 Jun 2009 22:05:53 -0500

Specific Heat and Calorimetry Labs

Tue, 02 Dec 2008 19:20:09 -0500

Today, we performed a lab in which you found the identity of a metal by determining its specific heat capacity. Some of you didn't finish; others were on a field trip and have yet to carry it out. We are going to do another lab on Wednesday in which we find the calories in a potato chip. There should be time for you to complete the specific heat lab and conduct the potato chip lab on Wednesday.

The specific heat of a metal lab is due on Friday, 12/5. The potato chip lab will be due on Monday, 12/8. We will learn about acids and bases on Thursday and Friday of this week.

thermo websites to visit for additional help

Sun, 30 Nov 2008 21:04:36 -0500

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

some acid/base websites

Sun, 30 Nov 2008 20:39:57 -0500

I have located the following websites which may provide some assistance to you. Note: some may be beyond high school level, to some extent, but offer good help up to a point.

http://www.chemtutor.com/xacid.htm

http://www.wwnorton.com/college/chemistry/gilbert/overview/ch16.htm

Another cool place is http://www.chem.ubc.ca/courseware/pH/index.html

A site with problems to work as well as answers is http://www2.ucdsb.on.ca/tiss/stretton/CHEM2/acidwk01.htm

A site with quizzes is http://chemunder.chemistry.ohio-state.edu/under/chemed/qbank/quiz/bank12.htm

Do yourself a favor. READ YOUR TEXTBOOK. This will definitely eliminate some of the whining that goes on in class from you when you say "I don't get it" or "This is so hard" before you even explore anything outside of class. Care enough about yourself to invest in your learning.

Thermochemistry

Sun, 30 Nov 2008 19:56:12 -0500

Be sure that you are working problems on thermochemistry. For additional problems, please consult http://www.emsb.qc.ca/laurenhill/science/morecalorimetry.html, http://www.chm.davidson.edu/java/calorimetry/calorimetry.html, or http://dbhs.wvusd.k12.ca.us/webdocs/Thermochem/Thermochem-WS1.html. and click on "heating curve tutorial" for some good information.

Energy and Neutralization

Sun, 30 Nov 2008 19:36:47 -0500

Ladies and gents, we are moving into our final unit in honors. It encompasses two chapters, 10 and 16. We will have several lab opportunities during the unit. The test will be on Friday, December 12.

Chapter 10 suggested problems regarding energy include p. 325 5; p. 330 10.3; p. 332 10.4; p. 333 4, 6; p. 335 10.5; pp. 353-355 6, 9, 10, 14, 15, 24, 26, 27, 29, 30, 31, 48, 49, 50, 54, and 55.

Chapter 16 suggested problems regarding acids and bases include p. 565 16.2; p. 571 16.3; p. 372 1, 5, 6; p. 574 16.5; p. 576 16.7; p. 577 16.8; p. 578 16.9; p. 580 16.10; p. 581 1, 2, 3, 4, 5, 6; p. 584 16.11; p. 586 1, 4; pp. 589-592 1, 2, 3, 4, 5, 6, 7, 8, 13, 14, 22, 23, 25, 30, 31, 32, 33, 34, 35, 41, 43, 44, 52, and 56.

Thermochemistry and Thermodynamics

Sun, 30 Nov 2008 18:13:34 -0500

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.

Acid/Base Test 12/2

Mon, 24 Nov 2008 08:55:57 -0500

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.

Science Olympiad Links

Mon, 24 Nov 2008 08:52:35 -0500

Folks, please be working on your events during the break. We'll have a status report from each event on Wednesday, December 3.

The link for the Georgia website, where the list of reptiles and ampibians can be found, among other things is http://www.aug.edu/gaso/

The link for national SO is http://www.soinc.org

I have found good tips on the national website before.

If we expect to be competitive on February 21 in Macon, we have to be prepared!

Happy Thanksgiving!

Mon, 24 Nov 2008 08:50:37 -0500

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.

acid base titration

Sun, 16 Nov 2008 19:43:53 -0500

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.

Lab, Lab, Everywhere

Sun, 16 Nov 2008 19:40:25 -0500

Students, you performed The Preparation of a Solution on Friday. Those formal lab reports, with creative titles and including all information specified, are due on Friday, November 21.

Monday, we'll perform Solubility of a Salt which will be due on Wednesday, 11/19. We will carry out the ice cream lab on Friday, 11/21, and it will also be due on that date.

On Wednesday, we'll review for a portion of the period and perform a lab for the new unit which we'll begin after Thanksgiving. That lab report will not be due until December 3.

Science Team 11/19 meeting

Sun, 16 Nov 2008 19:35:00 -0500

Ladies and gents, the science team WILL meet this Wednesday, November 19, after school in Room 317. See you there!

Juniors Preparing for Science GHSGT

Sun, 16 Nov 2008 19:22:14 -0500

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.

Preparation of a Solution

Fri, 14 Nov 2008 09:44:28 -0500

Many of you have expressed surprise at how detailed you must be when you explain how to prepare a solution. Please visit http://www.sas.org/E-Bulletin/2002-02-08/labNotes/body.html for more details.

Another location to explain freezing point depression is http://chemistry.about.com/cs/howtos/a/aa020404a.htm

This site http://www.chemistry.nmsu.edu/studntres/exercises/hwfreezing.html gives you problems to practice and solve online.

Your Preparation of a Solution labs are due on Friday, November 21. This is your formal lab report for the semester. Be sure that you work on your own and that you include all the information listed in the last paragraph of the lab handout. Your lab SHOULD NOT be identical to anyone else's, despite the fact that you worked as a lab group. The honor code dictates that you not copy another person's work. It is essential that you learn this lesson long before you reach your collegiate experience.