Chem 2 Labs
Colorimetry & Spectrophotometry
10/6/04 TB

Objective: To demonstrate the visual and instrumental measurement
of color intensity, both qualitatively and quantitatively.

Know:

Calculation of %T and A
Use of calibration curves
Variation of A with pathlength and dilution

Information about light
can be found in the freshman text:
"Chemical Principles", 3rd. ed., by Atkins & Jones pp. 2-3
Information about UV/VIS Spectroscopy can be found on pp. 124-125
Information about logarithms can be found in
pp. A7-A8, of appendix A, at the back of the book.

Older reference:

Additional help with the math involved may be found
in the old freshman chemistry text: Zumdahl, 'Chemical Principles, 3rd. ed.',
Appendix Three-Spectral Analysis, pp A18-A22
(Green pages at the back of the text)