CHM 235 LL Laboratory Schedule

Wednesday lab, Fall 2009

 

Week

Date

Experiment

 1.

August 26

Introduction: Check-Out, Safety and Lab Books;
Introduction to Microscale [Exp. 1, Exercises 1A, 2] (pp. 2-13)

 2 & 3.

September 2 & 9

      

Solubility [Exp 2A - E] (pp. 13-20)
Microscale B.P. [Tech. 13.2] (pp. 697-699); Refractive Index [Tech. 24.1-24.3 ] (pp.827-831)
Infrared Spectroscopy Introduction [Tech. 25] (pp. 833-86) [Chapter 12, lecture text]

 4.

September 16

Making Aspirin [Exp. 8] (pp. 63-66) (MSDS sheets due at beginning of lab)

 5.

September 23

Crystallization [Exp. 3, parts A-D] (pp. 21-29)

 6.

September 30

Extraction [Exp. 4, parts A-D] (pp. 32-40)

 7.

October 7

Distillation [Exp. 6A] fractional semimicro and simple semimicro distillations (pp. 51-56) Note additional reading in Tech. 14,15, 22

 8.

October 14

Distillation [Exp.6B simple micro] (pp.56-57)
GC Analysis of 6A samples [Tech. 22] (pp.797-818)

 9.

October 21

Isopentyl Acetate [Exp. 13A] (pp. 103-105)

10.

October 28 

Introduction to NMR Spectroscopy [Tech. 26 & 27] (pp. 868-923); [Ch. 13 Lecture Text]
begin a-Phenylethylamine Resolution [Exp. 40A] (pp. 331-336)

11.

November 4

Spectroscopy Problem Set. [Use Tech. 25, 26, 27] and [Ch. 12 & 13 Lecture Text]
continue a-Phenylethylamine Resolution [Exp. 40A] (pp. 331-336) 

TLC Analysis of Analgesic Drugs [Exp. 11] (pp. 83-87)
**Isopentyl acetate formal report due.**

12.

November 11

Extraction of Limonene [Handout]

13.

November 18

Isolation of Caffeine From Tea [Exp. 12A] (pp.87-95)

 

November 25

Thanksgiving week. Labs do not meet

14.

December 2

Complete Exp. 40A and any previous experiments not completed. LAB BOOKS DUE

15.

December 9

Check-in

 

á      All students need safety goggles and a bound lab notebook. These may be obtained from the bookstore.

á      Changes in the schedule may be necessary and will be announced by the instructor.

á      Notebook initials required for each lab meeting

 

 

 

 

 

 

 

Grading for CHM 235 Lab

 

 

The lab grade will be assigned on the basis of points earned in several areas:

 

Total                                                                                                   600

 

 

Grades will be assigned on a percentage basis as follows:

 

            90% - 100%       A

            80% - 90%                  B

            70% - 80%                  C

            60% - 70%                  D