This week we will be doing a guided inquiry experiment titled Acid and Base Classification (draft version). This experiment has been adapted from the experiment of the same name written by Dr. Michael Abraham and Dr. Michael Pavlich from the Inquiry In Chemistry Laboratory Manual. We will begin our discussion of acids and bases in lecture on Monday, March 25, 2002, so this is a good approach. In laboratory you will investigate some of the chemical properties of acids and bases. I will pass out copies of the laboratory experiment in class on Monday morning. There may be a pre-laboratory activity that I will want you to do. Check here or on the Announcements Page for an update.
This week we complete the second part of a two week HBL experiment Exp #5 titled ' Balance or Completion: Equilibrium'. You will use the same experiment as used last week.
Your teaching assistant will give you specific instructions about the laboratory write-up for this experiment and when the write-up is due.
This week we begin the first of a two week HBL experiment Exp #5 titled ' Balance or Completion: Equilibrium'. You will need to print out the experiment before you come to class.
Read the experiment carefully. HBL experiments are different compared to the Guided Inquiry experiments we have been doing. Inthe HBL experiment you will have to design the experiment as well as collect data. You should recall what we have been doing in laboratory these past three weeks because the techniques and ideas in those experiments will be very important in this experiment.
Your TA has been instructed to be supportive and encouraging. But you are expected to work in pairs, to discuss what you are going to do and talk to your TA and other students as you develop you plan. The experiment will take two weeks to complete your plan, but you need to arrive at a complete plan before you can begin. Figuring out your plan will take a while so do not stress if you are still working on your plan after 30 minutes.
Laboratory will be in PS453. You will need your goggles. We will be working with an indicator dye. Although the solution we are working with is very dilute you should still exercise caution when handling the indicator solution. Dyes are hazardous. So if you spill or drop any dye on your skin, go and wash it off. The dye will stain clothing. You will also be working with a dilute solution of HCl. Be careful with this solution also. If you get any on your skin or clothes, wash it off.
This week we are doing the experiment titled Iron (III) Nitrate and Potassium Thiocyanate. We are extending our coverage of the reaction between Fe3+ and SCN-. This is another experiment written by Dr. Abraham and Dr. Pavlich, but I've not modified this one. We will also bring in the Spec 20 that we learned to use two weeks ago to make this investigation more quantitative. The only place you can pick up a copy of the this experiment is in class or my office. Drop by if you need a copy. You will be working in PS255 again this week.
This week in laboratory (in PS255) we are doing a guided-inquiry experiment titled Shifting Reactions. This experiment has been adapted from the experiment of the same name written by Dr. Michael Abraham and Dr. Michael Pavlich from the Inquiry In Chemistry Laboratory Manual. There is a Pre-Laboratory Exercise that you are expected to do BEFORE doing the experiment in laboratory. Be sure to enter your SID (Secret Identification Name/Number) and your laboratory section when you do the Pre-Laboratory Exercise. The Pre-Lab assignment consists of four pages: 2 pages of questions that are based on viewing several QuickTime movies, and two pages listing your responses (to the questions) that you are to print out and bring with you to laboratory.
This week in laboratory we are actually going to work with some chemicals, although not too dangerous. The experiment, Introduction to Spectroscopy, will introduce to the importance of Beer's Law, an important relationship that relates the concentration of a colored compound with its concentration in solution. You will learn how to use a device called the Spectronic 20. This is a cool instrument that uses visible light to determine the concentration of a chemical reagent in a solvent. There are several Pre-laboratory questions that must be completed before you begin the laboratory.
Laboratory will be in PS255. You will need goggles for the experiment. If you do not have any or forget to bring your goggles you will have to rent them.
In discussion on Monday and Tuesday you will discuss the examiantion. Remember if you have any questions bout how your exam was graded to indicate that on the exam and return it to your TA. Wednesday and Thursday discussion sections will cover the uncoming PS that is due. I may have an In-Class exercise on intermolecular attractive forces for you to practice on..
This week in laboratory we complete the two week laboratory titled Survial Organic Chemistry. There are no Pre-laboratory questions for the second portion of this experiment. Laboratory will be in PS453. You will not need goggles for the experiment. But the laboratory for the week of February 11th you will need goggles. If you do not have any or forget to bring your goggles you will have to rent them.
If you missed the first week of laboratory you must bring the Pre-Laboratory Questions completed to lab this week and you will do what everyone else did last week (see the discussion below for Laboratory for the week of January 28, 2002).
Monday and Tuesday discussion sections will be able to answer questions about the examination Tuesday afternoon. Wednesday and Thursday discussion sections will go over the answers to the Exam and how it was graded.
This week in laboratory we start the first of a two week laboratory titled Survial Organic Chemistry. Copies of the experiment will be distributed in lecture during the second week of class. If you would like you can review a draft version of this experiment. Here is page 4 from the Survival Organic Chemistry laboratory. You can print this page so you will have an extra first page of the experiment. The pre-Laboratory questions for SOC will be due right at the beginning of your lab/discussion period. Remember lab meets in PS453.
The first page of the experiment has several problems that must be completed BEFORE you arrive in your discussion/laboratory during the week of January 28th. Be sure to include your TA's name and your laboratory section number are on the sheet. Bring extra paper to laboratory this week. Some of your notes/work may have to be recorded on separate sheets of paper from the laboratory experiment. Be organized as you work these next two weeks. Some of the points for this experiment will be awarded based upon on the organization, clarity of your experimental write-up. If you have questions talk to your TA.
Organic chemistry is covered in Chapter 15 of Silberberg. Here are some notes covering the organic chemistry that may help you in this experiment. Please be aware that we will be covering other material in lecture while doing the survival organic chemistry laboratory experiment. You will be responsible for the material covered in laboratory on Exam I. I also recommend you read sections 15.1 , 15.2 and 15.4 in Chapter 15 of your textbook.
Notes: Introduction to Organic Chemistry...alkanes, nomenclature of alkanes, and structural isomers; (sections 15.1 and 15.2)
Notes: Introduction to Organic Chemistry...condensed formulas and Lewis structures; (section 15.1 and 15.2)
Notes: Introduction to Organic Chemistry...alkenes, nomenclature of alkenes, geometric isomers and alkynes; (section 15.2)
Notes: Introduction to Organic Chemistry...important functional groups. (section 15.4).
You will be responsible for this experiment (nomenclature, formulas, and structural isomers) on a future Exam. Review section 15.1 and 15.2 pages 604 - 615.
Introduction to the laboratory, Safety and Review Problem Set.
Monday laboratory will meet in PS255, labs on Tuesday through Thursday will meet in PS453.
This week you will view a safety videotape (same one you viewed in CHEM 1314). everyone MUST watch the videotape before they can begin doing laboratory experiments.
Monday laboratory will also Check-in their laboratory equipment.
Everyone will spend an hour plus working on the Review Problem Set. So bring your book and a calculator. Your TA will assist you so be sure to ask questions!
NOTE: Monday laboratory section does not meet. All other laboratory sections do meet this week.
Review Problem Set.
NOTE: If you missed laboratory during the week of January 14 - 16 you must view the Safety Videotape this week. No student can do experiments until the Safety video has been watched and the Safety Quiz taken. See your TA to find out the procedure to view the Safety videotape.