A photometer with a linear response to radiation gave a reading of 690 mV with a blank in the light path and 169 mV when the blank was replaced by an absorbing solution. Calculate *(a) the transmittance and absorbance of the absorbing solution. (b) the expected transmittance if the concentration of absorber is one half that of the original solution. *(c) the transmittance to be expected if the light path through the original solution is doubled.

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter26: Molecular Absorption Spectrometry
Section: Chapter Questions
Problem 26.9QAP
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A photometer with a linear response to radiation gave a reading of 690 mV with a blank in the
light path and 169 mV when the blank was replaced by an absorbing solution. Calculate
*(a) the transmittance and absorbance of the absorbing solution.
(b) the expected transmittance if the concentration of absorber is one half that of the original
solution.
*(c) the transmittance to be expected if the light path through the original solution is doubled.
Transcribed Image Text:A photometer with a linear response to radiation gave a reading of 690 mV with a blank in the light path and 169 mV when the blank was replaced by an absorbing solution. Calculate *(a) the transmittance and absorbance of the absorbing solution. (b) the expected transmittance if the concentration of absorber is one half that of the original solution. *(c) the transmittance to be expected if the light path through the original solution is doubled.
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