A 2.50-mL aliquot of a solution that contains 3.8 ppm iron(III) is treated with an appropriate excess of KSCN and diluted to 50.0 mL. What is the absorbance of the resulting solution at 580 nm in a 2.50-cm cell? See Problem 14-21 for absorptivity data. See Problem 14-21 for absorptivity data: A solution with a "true" absorbance [A = log(P0 / P)] of 2.10 was placed in a spectrophotometer with a stray light level (Ps/P0 ) of 0.75% What absorbance A’ would be measured? What percentage error would result
A 2.50-mL aliquot of a solution that contains 3.8 ppm iron(III) is treated with an appropriate excess of KSCN and diluted to 50.0 mL. What is the absorbance of the resulting solution at 580 nm in a 2.50-cm cell? See Problem 14-21 for absorptivity data. See Problem 14-21 for absorptivity data: A solution with a "true" absorbance [A = log(P0 / P)] of 2.10 was placed in a spectrophotometer with a stray light level (Ps/P0 ) of 0.75% What absorbance A’ would be measured? What percentage error would result
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter13: An Introduction To Ultraviolet-visible Molecular Absorption Spectrometry
Section: Chapter Questions
Problem 13.24QAP
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A 2.50-mL aliquot of a solution that contains 3.8 ppm iron(III) is treated with an appropriate excess of KSCN and diluted to 50.0 mL. What is the absorbance of the resulting solution at 580 nm in a 2.50-cm cell? See Problem 14-21 for absorptivity data.
See Problem 14-21 for absorptivity data:
A solution with a "true" absorbance [A = log(P0 / P)] of 2.10 was placed in a spectrophotometer with a stray light level (Ps/P0 ) of 0.75% What absorbance A’ would be measured? What percentage error would result?
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