you have an uknown compound you need to identify its EI mass spectrum shows a peak at m/z 198 with an intensity of 57, and a peak at m/z 200 with an intensity of 19. there are no peaks with m/z 200. what does this mean?A. the compound contains a nitrogen atomB. the compound contains approximately 30 carbon atomsC. the compound contains a bromine atomD. the compound contains a chlorine atom

In mass spectroscopy the sample are ionized after high electric energy is supplied to it The…

you have an uknown compound you need to identify its EI mass spectrum shows a peak at m/z 198 with an intensity of 57, and a peak at m/z 200 with an intensity of 19. there are no peaks with m/z 200. what does this mean?

you have an uknown compound you need to identify its EI mass spectrum shows a peak at m/z 198 with an intensity of 57, and a peak at m/z 200 with an intensity of 19. there are no peaks with m/z 200. what does this mean?

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL2: Mass Spectrometry

Section: Chapter Questions

Problem 3E

See similar textbooks

Related questions

Q: Compare: number of peaks above above 1500 cm¹ in IR spectrum Jun CH3 H3C H₂ I. O the quantity in I…

Q: A molecule produces an IR spectrum with key peaks at 3100 and 2100 cm-1. The mass spectrum has a…

A: IR and mass spectrometry are important tools for the determination of structures of the unknown…

Q: 8. An unknown substance shows a molecular ion at m/z = 170 with a relative intensity of 100. The M+!…

Q: F 100- Spectrum A 133 80 134 [M]* 105 40 20 - 0 rt 20 40 60 80 100 120 140 160 180 200 m/z Relative…

A: Mass spectrum is useful for measuring mass to charge ratio of the molecules which are present in a…

Q: This compound has a molecular formula of CgH100. Given its molecular weight and this spectral data,…

A: Given: 7.9 ppm , 2H , multiplet 7.3 ppm, 1H , multiplet 7.1 ppm , 2H multiplet 3.0 ppm, 2H,…

Q: A mass spec of a compound gave M+ peak at 118 of 57.7% of the base peak. It also had a peak at 120…

A: Peaks at m/z 118 is M+ while that at m/z 120 is for [M+2]+ The ratio of intensity of M+ and [M+2]+…

Q: Which of the following statements regarding mass spectrometry is incorrect? a. A compound whose…

A: option A) bromine has two isomers Br-79 and Br-81. both molecular ion peaks are of the same…

Q: 7. Five compounds are shown for each of the IR spectra below. Indicate which of the five compounds…

A: IR spectra tells us about the functional group present in the compound.

Q: A mass spectrum shows significant peaks at m>z = 87, 115, 140, and 143. Which of the following…

A: The given compounds are,

Q: Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M)…

A: IR spectrum 1. 3074 cm-1 is due to aromatic C —H stretching 2. 2924 cm —1 is due to C —H stretching…

Q: Draw a tree diagram for H* of "CFH BrCH, Note the relative intensities of the peaks at the end of…

A: Two types of H are there in the compound, one attached the carbon-containing F and Br. Second one is…

Q: Draw the expected 1H spectra for the three compounds. Use the multiplicity (N+1) rule do determine…

Q: 9. An unknown hydrocarbon has a molecular ion peak at m/z = 84 with a relative intensity of 31.3.…

Q: molecular formula C5H12O ) find the structure by reading spectra ...all information are enough plz…

A: The structure of the compound having molecular formula C5H12O is given below

Q: 6.00 4.09 3.0 2.5 2.0 1.5 1.0 0.5 0.0

A: Chemical shift value of a proton depends on the electronic environment. Greater is the electron…

Q: 3. A molecule with three types of atoms has the mass spectrum shown below. The molecular ion peak…

Q: Determine four molecular formulas for a compound with a mass spectrum of 180: 182 (M: M+2) in a 3:1…

Q: What is the most likely molecular formula of a compound with unsaturation number of 1, that has a…

A: Given, Degree of unsaturation: 1 m/z for molecular ion = 106 M+2 is 33% intensity of the molecular…

Q: An undergraduate student was identifying compounds in a bottle. She takes a mass spectrum of the…

A: Ans (a) In the given problem we have a peak at M+2 which is 1/3 the height of the molecular ion.…

Q: b) Please draw a reasonable mass spectrum for the following compound of formula C4H100 (MW = 74).…

A: Mass spectra of 2-butanol.

Q: The mass spectrum of compound C, with a molecular formula C8H7BrO2 is shown below. 1.Draw the most…

A: The molecular formula of compound C is C8H7BrO2. The degree of unsaturation = C+1-(H/2)-(X/2) where,…

Q: A molecule produces an IR spectrum with a major peak at 1700 cm-1. The mass spectrum has a molecular…

A: Identification of unknown compound with the help of given spectral data.

Q: In a mass spectrometric study of nitrogenous aromatic compounds, a peak at m/z - 39 was found for 17…

A: Given:-

Q: Question 6: Suggest a structure of a compound that would fit with the spectra and the molecular…

Q: 2-Methylpentanal and 4-methyl-2-pentanone are constitutional isomers with the molecular formula…

A: Draw the structure of give isomer of 2-Maethyl pentanal and 4- methyl-2-pentanone molecule. Above…

Q: A bottle is labeled only "Compound B (C,H,,)" and contains a colorless liquid. You have been called…

A: DBE = (C+1)-H/2 = (6+1)-12/2 = 1 So, it is either a cyclic system or, an alkene. IR spectrum :…

Q: An unknown hydrocarbon has a molecular ion peak at m/e = 84, with a relative intensity of 31.3. The…

A: Firstly the relative abundances of M should be set to 100%. Since the relative intensities of M are…

Q: b) An unknown hydrocarbon has molecular ion peak at m/z= 84 with a relative intensity of 31-3. The…

Q: 4.Describe and explain the major differences between the IR of compounds 1 and 2 shown below.…

Q: A compound containing only carbon, nitrogen, oxygen, and hydrogen contains four carbon atoms. If the…

A: compound contain of cqarbon,nitrogen,oxgen and hydrogen and cointain of 4 hydrogen M+ peak M/z=87(…

Q: A reaction was performed which gave a very good yield of product. Mass spectral analysis of the…

A: Ans A

Q: Each of the molecules shown below generates three different HNMR signals. Using the chemical shift…

A: The solution is as follows:

Q: The two mass spectra below correspond to two isomers of C4H10O: 1-butanol and 2-butanol. Match the…

Q: `NH2 H3C When writing the data for this compound in the format appropriate for a lab report, a…

A: Due to rapid exchange of N-H proton with solution. It gives two peaks. Thus 3370 broad peak and 3270…

Q: Which of these molecules best corresponds to the IR spectrum below? a) H,C. c) ) HO OCH, b) HO. но…

A: The spectrum which is given represents a carboxylic acid because, The given spectrum shows strong…

Q: Which of the labeled ions in the mass spectrum is least stable? (a) Peak II (b) Рeak I (c) Peak IV…

Q: 100 80 M+ 60 Which of the following compounds would be consistent with-a compound having the…

A: according to given relative intensity and m/z values. the highest peak in the spectrum shows at 92…

Q: You have a unknown compound you need to identify- its El mass spectrum shows a peak at m/z-187 with…

A: m/z = 187. Odd mass indicates presence of one nitrogen atom. Ans: The compound probably contains a…

Q: 10. An unknown substance has a molecular ion peak at m/z = 107, with a relative intensity of 100.…

Q: Which of the molecules below would be consistent with a compound having a (M)** of 102.0678 m/z in a…

A: Mass spectrometry is an important tool for the determination of the molecular mass of the compound…

Q: n determining the concentration of a sample X, it was found that it has maximum absorbance at 275…

A: Answer:- This question is answered by using the concept of calculation of concentration using the…

Q: 17. You notice that a mass spectrum shows the equal intensity (peak) for both m/z at M+ (molecular…

A: Given is, M and M+2 peaks are equal in intensity, that means ratio is 1:1.

Q: 1. An unknown hydrocarbon has a molecular ion peak at m/z = 84 with a relative intensity of 31.3.…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: Assigning Spectra: The peak at 0.9 ppm is a doublet, integrating to 6. Assign this peak to a…

A: Given signal is at, 0.9 ppm - singlet and integration-6

Q: molecular formula C10H17ON) find the structure by reading spectra ...all information are enough plz…

A: below answer is given

Q: Mass spectra was obtained for an unknown compound. The spectra showed an M+2 peak with an intensity…

A: Given is, m+2 peak is 1/3rd to the molecular ion peak.

Q: 15. In a mass spectrum, will the molecular ion peak always be the base peak? A yes no

Question

A. the compound contains a nitrogen atom

B. the compound contains approximately 30 carbon atoms

C. the compound contains a bromine atom

D. the compound contains a chlorine atom

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Following is the mass spectrum of 3-methyl-2-butanol. The molecular ion m/z 88 does not appear in this spectrum. Propose structural formulas for the cations of m/z 45, 43, and 41.
Write molecular formulas for compounds that show the following molecular ions in their high-resolution mass spectra, assuming that C, H, N, and O might be present. The exact atomic masses are: 1.007 83 (1H), 12.000 00 (12C), 14.003 07 (14N), 15.994 91 (16O). (a) M+=98.0844 (b) M+=123.0320
Following is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122. Suggest a structure for this compound. (Data from http://webbook.nist.gov/chemistry/.)
The nitrogen rule of mass spectrometry says that a compound containing an odd number of nitrogens has an odd-numbered molecular ion. Conversely, a compound containing an even number of nitrogens has an even-numbered M+ peak. Explain.
2. In a mass spectrum of a compound, the following data (intensity) is given. M+ = 80, M+ +1 = 8.8, M+ +2 = 26. This compound will have carbons and will contain a a. 8, sulfur b. 9, silicon c. 10, chlorine d. 11, bromine
Mass spectroscopic. What is the isotopic peak pattern of each : Organic compound with 2 bromine atoms. Organic compound with 2 chlorine atoms.
You have a unknown compound you need to identify - its El mass spectrum shows a peak at m/z=187 with an intensity of 84, and a peak at m/z = 188 with an intensity of 11. There are no peaks with m/z > 200. What does this %3D mean? The compound contains approximately 30 carbon atoms The compound probably contains a nitrogen atom The compound probably contains a bromine atom Not enough information to tell anything
An undergraduate student was identifying compounds in a bottle. She takes a mass spectrum of the sample. The molecular ion has a mass of 106 amu. The M+1 peak is 4.4% of the intensity of the molecular ion. There is an M+2 peak that is 1/3 the height of the molecular ion. a. How many atoms of each of the following types are present in the compound? C? Cl? Br? N? b. Write a reasonable molecular formula for Miss X compound that is consistent with the MS data. c. Draw a structure with the formula you wrote in part (b).
1. Given the parent compound, chlorobenzene, draw the mass spectrum fragment that is observed at m/z 77. Include any hydrogen atoms and the charge. H H C H H H 2. Given the parent compound, isobutyl-benzene, draw the mass spectrum fragment that is observed at m/z 91. Include any hydrogen atoms and the charge. CH3 CH3
The mass spectrum below corresponds to acetone (C,H,O). What is the likely chemical composition of the ion that generates the tallest peak in the spectrum? A CH; B C₂H₂O* C C₂H₂0 D CO* Adve MALUPECTUR 14
A compound containing only carbon, nitrogen, oxygen, and hydrogen contains four carbon atoms. If the M+ peak in its mass spectrum appears at m/z = 87, then how many nitrogen atoms does it contain?
A mass spectrum with M+ at m/z = 101 with a minor M+1 peak contains what diagnostic atom? I believe the substance talked about may be C6H15N but I am not sure. Please explain.