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 2, Problem 2.19QAP
Interpretation Introduction
Interpretation:
The plot of the frequency response curve for low-pass RC filter is to be stated.
Concept introduction:
The RC filter or the RC circuit is the electrical circuit containing the resistor, capacitor and the voltage source.
The ratio of peak voltages at output to the input is define as
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Calculate the temperature at which qvib
4.0 -.6806
X K
2.5 for nitric oxide. The vibrational wavenumber isỹ = 1876 cm-1.
Calculate the relative population differences (Nɑ - Nβ)/N for 1H nuclei in fields of (i) 0.30 T, (ii) 1.5 T, and (iii) 10 T at 25 °C.
Recalling that for a balck body, R(v) = ((2 pih)/(C^2)) ((V^3)/(e^ (hv/kt
)) - 1) compute the value of R (vmax) for a black body emitter with wavelentgh
max = 500nm.
Chapter 2 Solutions
Principles of Instrumental Analysis
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
- What is the ratio of weights of populations for even and odd J due to the effects of nuclear statistics for C,? For 13c, l= What is the ratio of weights of populations for even and odd J due to the effects of nuclear statistics for 12.5,? What effect would be observed when 12. is replaced by 13,? |( 12c)=1 ( 325) = 0.arrow_forwardSuppose that the wavenumber of the J = 1 ← 0 rotational transition of 1H79Br considered as a rigid rotor was measured to be 17.89 cm-1, what is(a) the moment of inertia of the molecule? ______ kg-m2(b) the bond length? ______ Angstroms(Given the isotopic masses:(m(79Br) = 78.9183 amu, m(81Br) = 80.9163 amu)arrow_forwardWhat is the physical origin of the specific selection rule ΔJ= ±1arrow_forward
- Vibrations of molecules can be approximated by a harmonic oscillator only near the mini- mum of the binding potential curve, i.e., for small amplitudes for vibrations. Much better description is provided by the Morse potential 2 1 -h?w² ( n+ 4De En = hw ( n + A) Consider the 39K 35C1 molecule. In the far infrared spectrum, it has an intense line at 278.0 cm-1. Assume that it is an ideal quantum harmonic oscillator and estimate the period of vibration of the molecule. B) Now consider that 39K 35C1 molecule is described with a Morse potential with De 34843.15 cm-1 (this value comes from an experimental fit from the literature). If the excitation from the vibrational ground state to the first excited state is 278.0 cm-1, how much would the period of vibration change? How much would the energy transition between the first and second excited vibrational level differ from 278.0 cm-1?arrow_forwarddistinguish between the circumstances for the use of nRln(V2/V1) and Cvln(T2/T1) in calculating change in Sarrow_forward2. Peaks resulting transitions from n → TT* are shifted to shorter wavelengths (blue shift) with an increasing of solvent polarity. * True Falsearrow_forward
- 0.8 0.6 0.4 0.2 0.0 3000 2000 1000 Wavenumber (cm-1) ОН NH2 `NH2 A В C Transmitancearrow_forward4c. Calculate the values of Mn, Mw, Mz and polydispersity index for a polymer mixture having equivalent moles of two polymers with exact molecular weight being 2,000 Dalton and 10,000 Dalton.arrow_forward7) A 25.0 ml sample containing Cu gave an instrument reading of 23.6 units (corrected for a blank). When exactly 0.500 ml of 0.0287M Cu(NO3)2 Was added to the solution,the signal increased to 37.9 units. Calculate the molar concentration of Cu" in the sample +2,arrow_forward
- 7 A rectangular surface of 4 m2 was exposed to solar radiation of 1400 W/m2. The temperature of the surface was maintained at 500K. The spectral absorptivity of the surface is given as 0 for 0> λ (μm) < 0.5, 0.8 for 0.5> λ (μm)< 1, 0 for 1< λ (μm) < 2, and 0.9 for λ (μm)>2. Assuming the surface is diffuse and the sun temperature is 5800K, calculate the absorbed irradiation, radiosity, and net radiation heat transfer from the surface.arrow_forwardA kinetic experiment is carried out in a flow tube where the flow rate is 25 m s¯¹. The detector is a spectrophotometer, and absorbances are measured at various distances along the tube. The reactant has a molar absorption coefficient of 1180 mol-¹dm³ cm¹ at 420 nm. The absorbances are measured using a 1 cm optical cell. Use this information, and that in the following table, to calculate [reactant] as a function of time. Then plot a graph of [reactant] versus time and comment on its shape. May plot using excel. distance cm A 2.0 0.575 4.0 0.457 6.0 0.346 8.0 0.232 10.0 0.114arrow_forward-1 56 The first three Stokes lines in the rotational Raman spectrum of ¹0₂ are separated by 14.4 cm¹, 25.8 cm¹ and 37.4 cm from the exciting radiation. Using the rigid rotor approximation obtain a value for ro.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