Below are three MS spectra, Spectra 1, 2, and 3. Each of this mass spectrum corresponds to either Compound A (contains one Cl in the molecular formula), Compound B (one I in the molecular formula), and Compound C (one Br in the molecular formula). Identify which spectra corresponds to which compound. Provide explanations for your choices

Below are three MS spectra, Spectra 1, 2, and 3. Each of this mass spectrum corresponds to either Compound A (contains one Cl in the molecular formula), Compound B (one I in the molecular formula), and Compound C (one Br in the molecular formula). Identify which spectra corresponds to which compound. Provide explanations for your choices

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter7: Components Of Optical Instruments

Section: Chapter Questions

Problem 7.8QAP

See similar textbooks

Similar questions

Potassium dichromate and potassium permanganate have overlapping absorptionspectra in 1M H2SO4 . K2Cr2O7 has an absorption maxima at 440 nm, and KMnO 4 has a band at 545nm (the maximum is actually at 525 nm, but the longer wavelength is generally used whereinterference from K2C2O7 is less). A mixture is analyzed by measuring the absorbance at these twowavelengths with the following results: A 440 =0.405, A 545 =0.712 in a 1-cm cell. The absorbances ofpure solutions of K2Cr2O7 (1x10 -3 M) and KMnO 4 (2.00x10 -4 M) in 1 M H 2 SO 4 , using the same cell gavethe following results: A Cr,440 = 0.374, A Cr,545 = 0.009, A Mn,440 =0.019, A Mn,545 = 0.475. Calculate theconcentrations of dichromate and permanganate in the sample solution.
What process is involved in #4? A. external conversion B. vibrational relaxation C. intersystem crossing D. internal conversion
What is threshold frequency?
Calculate the resolution required to resolve the following peaks; i) CH3N+ (MW = 28.0187) and N2+ (MW = 28.0061) ii) C2H4+ (MW = 28.0313) and CO+ (MW = 27.9949) iii) C3H7N3+ (MW = 85.0641) and C5H9O+ (MW = 85.0653) iv) 116Sn+ (At W = 115.90219) and 232Th2+ (At W = 232.03800)
Why does fluorescence tend to be the mirror image of absorption?
Given the following data find the Molar absorption coefficient for Fe(SCN)^2+}Fe(SCN)X2+, (M−1 cm−1), if the length is 2.24cm. FIND THE UNROUNDED VALUE. Unrounded Rounded Molar absorption coefficient for \ce{Fe(SCN)^2+}Fe(SCN)X2+, (M−1 cm−1) Sample FROM PRELAB EXPERIMENTAL DATA CALCULATED VALUES 0.000300 M Absorbance Fe(SCN)X2+]equ, (M) --> for next bar 1 1.50 0.210166 0.0000300 2 3.50 0.466178 0.0000700 3 7.00 0.912604 0.000140 4 10.00 1.348948 0.000200 SLOPE, (M−1) INTERCEPT R^2R2 Unrounded 6.66606 × 103 1.20727 × 10-3 0.998979
For 1H35Cl molecule, (N1/N0) ratio at 300 K is 6.091 x 10^-2. Calculate the wavenumber ( in cm^-1 ) for J=2→J=3 transition in the microwave spectrum of the molecule.
The first line in the pure rotational spectrum of 1H35Cl appears at 21.18 cm-1. Find the value of the rotational constant for 2D35Cl given the atomic mass of D is 2.015 amu. Assume that bond length in DCI is the same as that in HCl i.e. 1.27 x 10-10 m.
Use the data in Figure 4.8 to estimate the ratio of radiation intensity at 10,000 Å (infrared) to that at 5000 Å (visible) from a blackbody at 5000 K. How will this ratio change with increasing temperature? Explain how this change occurs.
Define wavelength and fwhm (peak width at half the maximum height) of visible absorption.
A photon of wavenumber 100 cm-1 has a wavelength of
Principle of fluorescence spectroscopy