Monday (4/20) is
the Bicycle Maintenance Day from 11 am to 2 pm on
Library Lawn. Come bring you bike and learn
how to tune up your bike. Wednesday (4/22) is Beginners Day. A Beginners clinic will be held at the West Side at 6pm and will include basic bicycle skills and on the trail riding. If you need directions or more information contact Dr. G (who will probably crash somewhere on the trail.). |
Experiment #9: Determination of an Equilibrium Constant for a Weak Acid write-up is due this week (in laboratory). We have covered the calculations for this experiment in lecture. Remember to do the pre-laboratory questions (#4, 5f and 5g) before turning in the laboratory.Experiment #2: Qualitative Cation Analysis laboratory .
This week's laboratory is Experiment #3: Qualitative Anion Analysis. The write-up for this experiment will be due the week of April 20th. Remember also due the week of April 20th is the write-up for Experiment #10: Copper (II) Tartrate Solubility.
Problem Set 12 will probably be due on Wednesday, April 15th at 1:30 p.m. in class.
Trichloroacetic acid is a specialty chemical finding application as an astringent, antiseptic, and polymerization catalyst. The sodium salt is used as a herbicide and has antimicrobial activity. It is produced by the exhaustive chlorination of acetic acid using Cl2 and P as a catalyst. About 1,000 metric tons are produced in the US each year.
Specialty chemicals are compounds produced in low volumes at high prices (relative to commodity chemicals) to solve a particular customer need; most have more than one use and many grades/property specification.
One method of preparation of trichloroacetic acid is use chloral hydrate and nitric acid. Does anyone know the structure of chloral hydrate?
CASWEB: www.cas.okstate.edu/chemistry/CHEM1515/chem1515.html
JGELDERWEB:jgelder2.chem.okstate.edu
This brings up an important point that I need to make regarding Pre-laboratory Questions. These questions MUST be completed before beginning the laboratory. If they are not completed when the TA checks them 3 points will automatically be deducted from the total points you earn for that particular laboratory experiment. Additionally if any of the points for that experiment are associated with the pre-laboratory questions you will also loose those points. I would predict that a student could loose from 3 to 5 points for NOT completing the pre-laboratory questions.
Be sure to take your calculator and your textbook with you to laboratory. Since the first 50 minutes of the laboratory period is discussion/problem solving you will want to ask questions about problem sets and or lecture.
Monday, January 12, 1998
Wednesday, January 14, 1998
Friday, January 16, 1998
Monday, January 19, 1998
Wednesday, January 21, 1998
Friday, January 23, 1998
Monday, January 26, 1998
Wednesday, January 28, 1998
Friday, January 30, 1998
Monday, February 2, 1998
Wednesday, February 4, 1998
Friday, February 6, 1998
Monday, February 9, 1998
Wednesday, February 11, 1998
Friday, February 13, 1998
Monday, February 16, 1998
Wednesday, February 18, 1998
Friday, February 20, 1998
Monday, February 23, 1998
Wednesday, February 25, 1998
Friday, February 27, 1998
Monday, March 2, 1998
Wednesday, March 4, 1998
Monday, March 16, 1998
Wednesday, March 18, 1998
Friday, March 20, 1998
Monday, March 23, 1998
Wednesday, March 25, 1998
Friday, March 27, 1998
Monday, March 30, 1998
Wednesday, April 1, 1998
Friday, April 3, 1998
Monday, April 6, 1998
Friday, April 10, 1998
Monday, April 13, 1998
Wednesday, April 15, 1998