2CLabManual201303

61 data analysis part iii making the beers law plots

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ance of the mixture at the wavelength of maximum absorbance found for the red solution in Part I. (You should have a total of 2 readings.) Clean-up: The contents of the test tubes must be discarded to the waste container labeled Cobalt waste. 61 DATA ANALYSIS Part III. Making the Beer's Law Plots. Overview and a Modest Theoretical Excursion: In this part of the experiment you will manipulate the data collected in Part III to obtain the values of effective molar absorptivity, symbolized by *, for both the red and the green complexes at the two wavelengths of interest here. Beer's Law in the form in which you have seen it previously, A = ℓC, strictly applies only to a slender beam of monochromatic light passing through a cell with flat, parallel windows. In the present experiment the light beam is not small and the cell is not a rectangular parallelepiped, so the path length, ℓ, cannot be defined. Operationally, the detector outputs a signal that is the average of the exit intensity over the cross section of the cylindrical cuvette. If...
View Full Document

This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.

Ask a homework question - tutors are online