Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7, Problem 7.9QAP
Interpretation Introduction
(a)
Interpretation:
The thickness of dielectric layer needs to be determined when the interference filter is of first-order.
Concept introduction:
Calculation of the thickness of the dielectric medium is done by the following formula-
And the relationship between wavelength and wave number will also be used:
Interpretation Introduction
(b)
Interpretation:
Wavelengths transmitted from interference filter at different orders needs to be determined.
Concept introduction:
Following formula will be used for the calculation of wavelength at different order of interference filter-
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The abundance of ozone is typically inferred from measurements of UV absorption and is often expressed in terms of Dobson units: 1 DU is equivalent to a layer of
pure ozone 103 cm thick at 1 atm and 0°C. Given a molar absorption coefficient of 476 dm³ mol 1 cm 1, compute the absorbance of UV radiation for the ozone
values shown below.
(a) 320. DU (a typical value)
mol-1
4.0
15.2
x
(b) 150. DU (a value reached during seasonal Antarctic ozone depletions)
I have converted the NaCl (ppm) into NaCL (M) but am uncertain what the unquenched concentration fraction is and how to calculate it. Please see the attached image for the full question.
Cemetery
Chapter 7 Solutions
Principles of Instrumental Analysis
Ch. 7 - Prob. 7.1QAPCh. 7 - Prob. 7.2QAPCh. 7 - The Wien displacement law states that the...Ch. 7 - Prob. 7.4QAPCh. 7 - Prob. 7.5QAPCh. 7 - Describe the differences and similarities between...Ch. 7 - Prob. 7.7QAPCh. 7 - Prob. 7.8QAPCh. 7 - Prob. 7.9QAPCh. 7 - Prob. 7.10QAP
Ch. 7 - Why is glass better than fused silica as a prism...Ch. 7 - Prob. 7.12QAPCh. 7 - Prob. 7.13QAPCh. 7 - Prob. 7.14QAPCh. 7 - Prob. 7.15QAPCh. 7 - Prob. 7.16QAPCh. 7 - Prob. 7.17QAPCh. 7 - Prob. 7.18QAPCh. 7 - Prob. 7.19QAPCh. 7 - Prob. 7.20QAPCh. 7 - Prob. 7.21QAPCh. 7 - Prob. 7.22QAPCh. 7 - Prob. 7.23QAPCh. 7 - Prob. 7.24QAP
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.Similar questions
- Natural boron has a density of 0.128 x 1024 [at Icm³] and Cross section σ₂ = 764 [barns] and Of = 4 [barns] at an energy of E= 0.025 [V] a) calculate the macroscopic cross sections at 0.025 [ev] for absorption, Scattering and total interaction.arrow_forwardIn some IR spectra appearing in research articles, the bands have their base at the bottom of the graph and the peaks at the top (like stalagmites); however, in other spectra the bands appear "inverted" (stalactites). Only one of the following is an acceptable explanation.(A). "Inverted" spectra have negative absorbances because the absorptivity coefficient of the species of which the spectrum is recorded is negative(B). It depends on the optical configuration of the instrument: in some equipment the monochromator is between the source and the sample and in others between the sample and the detector(C). Some spectra are transmittance and others are absorbance(D). Everything depends on the number of lenses in the equipment's optics; if this number is odd, the spectrum comes out invertedarrow_forward(iii) You wish to determine the fluorescence lifetime of your sample using Time Correlated Single Photon Counting, TCSPC. Draw a sketch showing the layout and principal components of a suitable setup and explain the basis of the technique.arrow_forward
- The reaction is sodium dichromate with ethanol in the presence of H2SO4, not just ethanol alone reacted under sodium dichromate with H2SO4. There should be an ion as a product, that produces a species that will absorb at 600 nmarrow_forwardWhile cleaning the organic stockroom, a student found a bottle of ethanol labeled "Denatured with Benzene." He decided to determine the concentration of benzene in the ethanol by acquiring the UV spectrum of the liquid in a 2.0 cm cell. The spectrum exhibited an absorption band at 260 nm which was attributable to benzene, and the absorbance of this band was 0.69. In a reference source, the student found that the molar absorptivity of this benzene band in ethanol was 230 M-1cm-1. Show how the student calculated the concentration of the benzene in the ethanol.arrow_forward(b) Explain in detail the statistical treatment of adsorption.arrow_forward
- (c) Comment on the truth, or otherwise, of the following statement. "Fast time-scale flash photolysis can be used to determine rate constants for collisional relaxation (quenching) processes of singlet and triplet states. Radiative decay rate constants (Einstein A coefficients) can be determined from such measurements, and can also be calculated from absorption coefficients."arrow_forwardDefine a molar extinction coefficient and briefly describe how it is measured.arrow_forward4arrow_forward
- Figure 7. (a) Plots of Prepared versus Calculated percentages of p-aminophenol mixed with acetaminophen determined using (a) the Raman peak height at 846 cm ; and the 550-1800 cm Raman spectral region using (b) raw spectra (circles), and (c) first derivatives of the spectra (squares). Ideally, the slope should equal 1.0 and the intercepts 0.0. (a) (b) Prepared Percent Prepared Percent Explain the above drawing in detail and why it appeared in this way, and what the axes represent in the drawing, what is the relationship between the two axes, and why the drawing appeared in this way. What do the numbers in the figure represent? Calculated Percent RSRR Calculated Pereentarrow_forwardDetermine the expected diffraction angle for the first-order reflection from the (310) set of planes for BCC chromium when monochromatic radiation of wavelength 0.0779 nm is used. The atomic radius for Cr is 0.1249 nm.arrow_forwardwrite a summary of each of the techniques for measuring vacancyconcentrations, noted therein. (1) Measurements of the quenched-in residual electricalresistivity of aluminium rapidly cooled from temperatures be-low about 800 K with initial quenching rates of 2 × 106 K s−1give the enthalpy of formation of monovacancies H F1V =(0.65 ± 0.01) eV.(2) Comparison of the quenching data with high-temperature differential-dilatometry data gives the monova-cancy formation entropy SF1V = (0.76 ± 0.4)kB (kB =Boltzmann’s constant) and the low-temperature resistivity perunit concentration of vacancies ρ1V = (1.9 ± 0.1) μm.(3) The binding enthalpy of divacancies in Al is H B2V =(0.17 5 ± 0.02 5) eV. This is in agreement with earlier ex-perimental determinations by Doyama and Koehler 48) and byLevy et al. 49, 50) but in marked contrast to the claim of Carlinget al., 23) based on computations with the generalized gradi-ent approximation, that in Al H B2V is zero or even negativeand therefore the…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning