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What absorbance value corresponds to 40.2% T? A = A 0.0130 M solution of a certain analyte exhibits 40.2% T at a wavelength of 280 nm. What will the percent transmittance be for a 0.0255 M solution of the same analyte? Assume the pathlengths for each measurement are equal. %T = %

What absorbance value corresponds to 40.2% T? A = A 0.0130 M solution of a certain analyte exhibits 40.2% T at a wavelength of 280 nm. What will the percent transmittance be for a 0.0255 M solution of the same analyte? Assume the pathlengths for each measurement are equal. %T = %

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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### Transcription for Educational Website **Problem Statement:** What absorbance value corresponds to 40.2% transmittance (T)? \[ A = \_\_\_\_ \] **Further Inquiry:** A 0.0130 M solution of a certain analyte exhibits 40.2% T at a wavelength of 280 nm. What will the percent transmittance be for a 0.0255 M solution of the same analyte? Assume the pathlengths for each measurement are equal. \[ \%T = \_\_\_\_ \% \] **Instructions:** Calculate the absorbance using the formula: \[ A = -\log_{10}(T/100) \] Then, determine the percent transmittance for the 0.0255 M solution by applying Beer-Lambert law, assuming constant pathlength. Describe the methodological steps and calculations clearly.
Transcribed Image Text:### Transcription for Educational Website **Problem Statement:** What absorbance value corresponds to 40.2% transmittance (T)? \[ A = \_\_\_\_ \] **Further Inquiry:** A 0.0130 M solution of a certain analyte exhibits 40.2% T at a wavelength of 280 nm. What will the percent transmittance be for a 0.0255 M solution of the same analyte? Assume the pathlengths for each measurement are equal. \[ \%T = \_\_\_\_ \% \] **Instructions:** Calculate the absorbance using the formula: \[ A = -\log_{10}(T/100) \] Then, determine the percent transmittance for the 0.0255 M solution by applying Beer-Lambert law, assuming constant pathlength. Describe the methodological steps and calculations clearly.
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