Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Concept explainers

UV Visible Spectroscopy
Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinc…
Question

Why were the absorbance measurements recorded at lambda max (504 nm)?

 

Question 1 options:

 

at lambda max impurities in the sample do not absorb any light
 

Because the allura red dye absorbs red color at 504 nm
 

at lambda max the absorbance is the most sensitive to dye concentration
 

at lambda max the absorbance is the least sensitive to dye concentration
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