D Question 12 Select the most reasonable formula for the compound with the following mass spectral data: M* at m/z = 101 with a minor M+1 peak OCH15N O C₂H12O O C3H12N₂ O C₂H₂Cl Question 13 Loratidine is the active ingredient in the antihistamine Claritin®, Mass spectral analysis of loratidine shows M at m/z - 382 and M* at m/z -384 in an approximate ratio of 3:1 in intensity. Ochlorine Ofluorine Olodine O bromine

D Question 12 Select the most reasonable formula for the compound with the following mass spectral data: M* at m/z = 101 with a minor M+1 peak OCH15N O C₂H12O O C3H12N₂ O C₂H₂Cl Question 13 Loratidine is the active ingredient in the antihistamine Claritin®, Mass spectral analysis of loratidine shows M at m/z - 382 and M* at m/z -384 in an approximate ratio of 3:1 in intensity. Ochlorine Ofluorine Olodine O bromine

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

Chapter20: Molecular Mass Spectrometry

Section: Chapter Questions

Problem 20.11QAP

See similar textbooks

Similar questions

Propose the molecular formula for a compound that exhibits the following peaks in its mass spectrum (a) (M)+• at m/z = 46, relative height = 65.0 % of the base peak (b) (M+1)+• at m/z = 47, relative height = 1.4 % of the base peak Question 10 options: C4H6 C4H8O C7H12 C4H4O C2H6O
Which base peak is expected in the mass spectrum of 2,2,3-trimethylbutane? Question 10 options: m/z = 18 m/z = 43 m/z =29 m/z =57 m/z = 15
Given the spectra below, answer the following questions, both spectra were obtained with 1.0 cm optical path: (I) Which region is being studied (II)G and 6 T-G are molecules or atoms, justify your answer (III) What is λmax of G and 6 GT? (IV) If G has a concentration of 0.25 mM, what is its absorptivity at 250 nm? (V) If G has a concentration of 0.25 mM, what is its absorptivity at 350 nm (VI) If 6 GT has a concentration of 0.4 mM, what is your absorptivity at 250 nm? (VII) If G has a concentration of 0.24 mM, what is your absorptivity at 350 nm? (VIII) One solution contains 0.42 mM G and 0.03 mM 6 GT, what will be the absorbance of this solution in 250 and 350 nm ?
The low-resolution mass spectrum of an unknown analgesic X had a molecular ion of 151. Possible molecular formulas include C7H5NO3, C8H9NO2, and C10H17N. Highresolution mass spectrometry gave an exact mass of 151.0640. What is the molecular formula of X?
Three alcohol bottles were mislabeled in the stockroom: 1-pentanol, 2-pentanol, and 3-pentanol. A clever student decided to using MS to determine the identity of the structures. Using the MS data, draw the structure of the compound found in each bottle. Bottle #1: Base peak with a m/z of 45 Bottle #2: Base peak with a m/z of 70 and two significant peaks with m/z of 42 and 31 Bottle #3: Base peak with a m/z of 59
How many carbon atoms are expected to be in a hydrocarbon sample if it shows M and M+1 peak intensities of 67.8 and 6.04 respectively?
Which of the following statements about the mass spectrum of CH3Br is correct? A.) presents two peaks of intensity 3: 1 with m / z equal to 94 and 96 b.) presents two peaks of equal intensity with m / z equal to 94 and 96 C.) presents a single peak of the molecular ion with m / z of 44 D.) has a single peak of the molecular ion with m / z of 95
Can you help me analyse these spectrum tests? The unknown compound has a BP of 102, %C is 68.54, and %H is 8.66. The given tests are Mass Spec. and Thin-Layer Chromatography.
After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40, a student found that her best fit linear line for FD&C Red 40 was y = 2,962x + 0.005. Her Kool-Aid sample had an absorbance of 0.685. If 0.543 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her 8-fl oz cup?
The concentration of green dye in green apple Gatorade was determined in a manner identical to experiment 3.The slope of the Beer lambast law plot (calibration curve) for this dye (FD & C Green 3 or fast green) was determined to be 53.7 L/g cm (assume the intercept of the beer lambast law plot is zero)what is the concentration,in units of g/L,of the green dye in the sample of Green Apple Gatorade with an absorbance of 0.369?In three significant figures
1. Mass spectrometry will give information about molecular mass, chemical formula and structure of the molecule. Select one: True False 2. The strongest peak with 100% abundance in the mass spectrum is known as ........................................... a.Prominent ion peak b.Fragment ion peak c.Molecular ion peak d.Base peak
Chemistry please help me wt the ff: a. Calculate the concentration (g/mL) of acrolein [CH2=CHCHO] that should be prepared in orderto give an absorbance of 0.8 at 217 nm ( = 16,000). b. Propose a structure for C7H4O2Cl2, as an acid with λmax 242 nm. c. Describe briefly the steps in obtaining the spectrum of a sample using Thermo Scientific Nicolet IS5 FT-IR Instrument starting from loading the solid and liquid samples.