If 50.0 ml of water is added to 50.0 ml of a blue dye solution, and the newly diluted silution is placed in the spectrophotometer, what do you think would happen to the absorbance? choose all that apply! a. there would be no change b. it would increase c. there is not enough information to answer the question d. it would decrease

If 50.0 ml of water is added to 50.0 ml of a blue dye solution, and the newly diluted silution is placed in the spectrophotometer, what do you think would happen to the absorbance? choose all that apply! a. there would be no change b. it would increase c. there is not enough information to answer the question d. it would decrease

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter25: Instruments For Optical Spectrometry

Section: Chapter Questions

Problem 25.15QAP

See similar textbooks

Similar questions

Which of the the following is false regarding spectrophotometry? A. The concentration of a sample increases with path length of the curvette or sample holder since the absorbance increases B. when absorbance increases, transmittance decreases C.The absorbance coefficient depend on wavelength of light and type of sample.
When do you need to blank a spectrophotometer (Spec 20)? a.After the wavelength is changed. b.After completing all data collection. c.Before running a set of samples. d.Between each sample, even if the wavelength remains the same.
Do your graphs show the trends a)you expected based on what you know about absorbance and transmittance using a spectrophotometer? Why or why not? b) why does absorbance data relate more conveniently to concentration that does transmission data?
This is the result of an experiment in a spectrophotometer. please explain how the 595 nm was obtained and what is the implication of that result? thanks
A student measures the absorbence of an unknown after placing a sample in a cuvette which contained some water. How will this affect the concentration he reports?
In a solution with an absorbance of 1000 compared with a blank, find the observed absorbance when the measurement is done a) With stray light that is 1% of the transmitted light power. b) With stray light that is 1% of the incident light power. c) as a wavelength where the blank solution has a transmission of 0%
why is water used as a blank for Spectrophotometry?
Why is it necessary to run a blank before measuring the absorbance of a sample? To allow the lamp and electronics of the spectrophotometer to warm up before taking the sample absorbance reading. So that scattered light will be filtered before hitting the photodetector. To account for the absorbance caused by the cuvette and the solvent To account for the absorbance caused by the cuvette alone .
Which of the the following is false regarding spectrophotometry? A. The concentration of a sample increaes with the path length of the curvette or sample holder since the absorbance increases B. When absorbance increases, transmittance decreases C. The absorption coefficient depends on wavelength of light and type of sample D. Materials with higher absorption coefficients more readily absorb light. E. The lambda max of a red sample is at a shorter wavelength than the lambda max of a blue sample
A sample has a percent transmittance of 50.0%. What is its absorbance?
1. Give the general steps in the use of a spectrophotometer. 2. Define the following: a. ) Optical Density b.) Transmittance c.) Beer's Law
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?