A UV-visible spectrometry cuvette has erosions on one of the two faces through which the radiation passes. Will this affect the measured absorbance?(A). Yes, errors will be obtained due to excess(B). Yes, errors will be obtained due to defect(C). Yes, and the error will be due to excess if the eroded face is the one through which the radiation enters and due to defect if the eroded face is the one through which the radiation exits(D). Yes, and the error will be due to defect if the eroded face is the one through which the radiation enters and due to excess if the eroded face is the one through which the radiation exits

A UV-visible spectrometry cuvette has erosions on one of the two faces through which the radiation passes. Will this affect the measured absorbance?(A). Yes, errors will be obtained due to excess(B). Yes, errors will be obtained due to defect(C). Yes, and the error will be due to excess if the eroded face is the one through which the radiation enters and due to defect if the eroded face is the one through which the radiation exits(D). Yes, and the error will be due to defect if the eroded face is the one through which the radiation enters and due to excess if the eroded face is the one through which the radiation exits

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter3: Statistical Tests With Excel

Section: Chapter Questions

Problem 4P

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A UV-visible spectrometry cuvette has erosions on one of the 2 faces through which the radiation passes. How will this affect the measured absorbance?(A). Yes, errors will be obtained due to excess(B). Yes, errors will be obtained due to defect(C). Yes, and the error will be due to excess if the eroded face is the one through which the radiation enters and due to defect if the eroded face is the one through which the radiation exits(D). Yes, and the error will be due to defect if the eroded face is the one through which the radiation enters and due to excess if the eroded face is the one through which the radiation exits
Does a calibration curve alwasy compare concentration and absorbance? Or can it compare concentration and %T as well?
A student calibrated the mini-spectrophotometer with a blank solution, and then went to check their solution. They got a fingerprint on the cuvette while filling it. Because of this, the expected reading for the absorbance would be [Select] [Select] ✓ [Select] too high too low O which would cause the calculated value of Ke to be
What is the concentration of a sample that transmits 70% signal at a certain wavelength upon analysis? The molar absorptivity is 2.0 and the cuvette used has a width of 1.0 cm. Additionally, (a) What is the absorbance of the sample at this wavelength? b) And what is the fraction of light that would be transmitted by the sample if the concentration is increased three times?
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state if true or false 1. Prior to a fixed point or wavelength reading, spectral scanning can be done to determine the maximum absorbance wavelength of a sample. 2. The purpose of a diffraction grating is the same as that of a prism. 3. In any UV-VIS spectrophotometer, the light is filtered first to a single wavelength or narrow range before it hits the sample 4. In any UV-VIS spectrophotometer setup, the detector always comes right after the sample container. 5. It is necessary to set the blank before each reading even if the only difference between the sample solutions is the amount of analyte. 6. Prior to a fixed point/wavelength reading, spectral scanning can be done to determine the maximum absorbance wavelength of a sample.