Homework Help is Here – Start Your Trial Now!
Science
Chemistry
5. Determine the percent transmittance of B-carotene, C40H56 that has an absorbance of 0.5 when analyse using a UV-Visible spectrophotometer. A. 6.83% B. 31.6% C. 0.32 % D. 68.3%

5. Determine the percent transmittance of B-carotene, C40H56 that has an absorbance of 0.5 when analyse using a UV-Visible spectrophotometer. A. 6.83% B. 31.6% C. 0.32 % D. 68.3%

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question
5. Determine the percent transmittance of B-carotene, C40H56 that has an absorbance of 0.5 when analyse using a UV-Visible spectrophotometer. A. 6.83% B. 31.6% C. 0.32 % D. 68.3% 6. The equation of Beer Lambert's Law is A = abc. If the 'b' is distance, 'a' is absorptivity, and 'A' is absorbance, what does the 'c' represent? A. Intensity B. Analyte concentration C. Analyte transmittance D. Frequency 7. All the following is an example of photon detectors EXCEPT: A. Vacuum phototube B. Silicon photodiodes C. Bolometers D. Photomultiplier tubes 8. C=O bond stretch occurs at 1750 cm1 and C-O stretch occurs at 1100 cm1 because: A. The C-O has a single bond which is a stronger bond, so it vibrates at a higher frequency than the C=O. B. The C-O has a single bond which is a stronger bond, so it vibrates at a lower frequency than the C=O. C. The C=O has a double bond which is a stronger bond, so it vibrates at a lower frequency than the C-O. D. The C=O has a double bond which is a stronger bond, so it vibrates at a higher frequency than the C-O. 9. Following are the advantages of double-beam instrumentation EXCEPT: A. Compensate for all but most short-term fluctuations in the radiant output of the source as well as for drift in the transducer and amplifier B. Suited for quantitative absorption measurements at a single wavelength C. Compensate for wide variations in source intensity with A D. Continuous recording of transmittance or absorbance spectra
Transcribed Image Text:5. Determine the percent transmittance of B-carotene, C40H56 that has an absorbance of 0.5 when analyse using a UV-Visible spectrophotometer. A. 6.83% B. 31.6% C. 0.32 % D. 68.3% 6. The equation of Beer Lambert's Law is A = abc. If the 'b' is distance, 'a' is absorptivity, and 'A' is absorbance, what does the 'c' represent? A. Intensity B. Analyte concentration C. Analyte transmittance D. Frequency 7. All the following is an example of photon detectors EXCEPT: A. Vacuum phototube B. Silicon photodiodes C. Bolometers D. Photomultiplier tubes 8. C=O bond stretch occurs at 1750 cm1 and C-O stretch occurs at 1100 cm1 because: A. The C-O has a single bond which is a stronger bond, so it vibrates at a higher frequency than the C=O. B. The C-O has a single bond which is a stronger bond, so it vibrates at a lower frequency than the C=O. C. The C=O has a double bond which is a stronger bond, so it vibrates at a lower frequency than the C-O. D. The C=O has a double bond which is a stronger bond, so it vibrates at a higher frequency than the C-O. 9. Following are the advantages of double-beam instrumentation EXCEPT: A. Compensate for all but most short-term fluctuations in the radiant output of the source as well as for drift in the transducer and amplifier B. Suited for quantitative absorption measurements at a single wavelength C. Compensate for wide variations in source intensity with A D. Continuous recording of transmittance or absorbance spectra
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Growth and Structure of Solid Surfaces
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS