Asked by joe

a)why do chemist prefer to read/ record the absorbance, rather that the percent transmittance, of light when analyzing a sample having a visible color?

b) three parameters affect the absorbance of a sample. Which one is the focus of this experiment?

Answered by drwls
a) The log of AbsorbTance, which is called absorptivity, is proportional to concentration.

b) What experiment?
Answered by I'd
B) the concentration of the absorbing substance
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