2: The following describes Beer's law, except: A) The absorbance of light is proportional to the length of the light path B) The absorbance of light is proportional to the concentration C) The intensity of the transmitted light is higher than the initial intensity of the light D) There is a linear relationship between the concentration and the absorbance E) None of the above are correct
2: The following describes Beer's law, except: A) The absorbance of light is proportional to the length of the light path B) The absorbance of light is proportional to the concentration C) The intensity of the transmitted light is higher than the initial intensity of the light D) There is a linear relationship between the concentration and the absorbance E) None of the above are correct
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...
Related questions
Question
please solve question 42
Transcribed Image Text:Q42: The following describes Beer's law, except:
A) The absorbance of light is proportional to the length of the light path
B) The absorbance of light is proportional to the concentration
C) The intensity of the transmitted light is higher than the initial intensity of the light
D) There is a linear relationship between the concentration and the absorbance
E) None of the above are correct
Q43: The maximum absorption of methylene blue dye is at 664 nm, what is the absorbance of
methylene blue at a concentration=5.0x106 mol/L if the path length=1 cm and € 664=
95000 L mol-¹ cm-¹?
A) 0.475
B) 0.62
C) 0.25
D) 1
E) 0.019
Q44: Among the following, the least sensitive assay for measuring protein concentration is:
A) Lowry assay
B) Bradford ássay
C) BCA
D) Waddell
E) Biuret
Q45: The limitation of using UV absorption at 280 nm to determine protein concentration is:
A) Complex assay and not easy to use
B) It has very low sensitivity in detecting proteins (around 1-20 mg)
C) Ideal for protein mixtures with variable content of aromatic amino acids
D) Nucleic acids interfere with protein concentration measurement using this assay
E) None of the above
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
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.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY