A compound used as a moth repellant has three molecular ion peaks at m/z = 146 (100%), 148 (65%) & 150 (10%) amu in its mass spectrum. A pair of smaller peaks are seen at m/z= 111 (34%) & 113 (11%). The infrared spectrum shows sharp absorption just above 3000 cm^-1 region, and also at 1480 cm^-1. The ^1 H nmr shows a single sharp signal at delta = 7.2 ppm, and the ^13 C nmr has two signals (delta = 133 & 130 ppm).

Q: Consider the constitutional isomers of molar mass = 100 represented below. Significant peaks in the…

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Q: The mass spectrum of Compound B is shown below: Draw the most likely species responsible for the…

A: The mass spectrum of a species is given with signals at m/z 43, 77, and 105.

Q: How would you distingush between the molecules using 1H NMR spectra? Give TWO key differences.

A: We will closely observe the two compounds and find out the proton present in a different…

Q: Compound 15 is a high-boiling liquid with the chemical formula: C,H₁0O. The disappears when D₂O is…

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Q: Is the structure on the bottom right corner of the FTIR photo correct for the mass spectrum, FTIR,…

A: Spectroscopic analysis is an important method to identify the structure of an unknown organic…

Q: Analyze the NMR spectrum below and identify the com

A: Proton and carbon NMR spectroscopy is used to identify the unknown compound. Proton NMR is used to…

Q: Propose a molecular formula for a compound that exhibits the following peaks in its mass spectrum…

A: Given :

Q: 2. Consider the following mass spectrum. Intensity 100- 80 20- 0. 10 20 30 40 m/z 50

A: Molecular ion peak [M+] in mass spectrum- The heaviest ion peak (peak with greatest m/z value) in…

Q: Primary (1°) alcohols often show a peak in their mass spectra at m/z = 31. Suggest a structure for…

A: Given information,    Primary alcohols often show peak in their mass spectra at m/z = 31.

Q: The mass spectrum of Compound D, with a molecular formula C8H7BrO2 is shown below. Identify and draw…

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Q: With the informations below, would the nitrogen show a signal on the CNMR?

A: Spectroscopic techniques are used for the identification of complete structure of the organic…

Q: A compound with molecular formula C₂H8O3 exhibits the following IR, ¹H NMR and 13C NMR spectra.…

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Q: Which compound will generate the mass spectrum below? Relative Intensity 100- 80 40 20- 10…

A: Given is mass spectrum.In mass spectra the peak on the right side is known as molecular ion peak.The…

Q: The molecular ion region of the spectrum of biphenyl. M1 is observed at m/z 154 and the intensity of…

A: M.+ peak in the mass spectra of any compound is the molecular ion peak and gives the molecular mass…

Q: 12. The mass spectrum of 2,2-dimethylpropane shows only a very weak molecular ion peak at m/z = 72.…

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Q: How many peaks would each compound show in their 13C NMR spectrum?  a) eucalyptol  b) linalool

A: Each unique carbon gives one peak in 13C-NMR. So, the number of peaks in 13C-NMR equals to the…

Q: Determine the chemical formula of the compound responsible for the following molecular ion series in…

A: Mass spectrum of an unknown compound is given.

Q: What structure is consistent with these spectra? ¹H NMR Spectrum 1200 MHz, CDC), solution) 100 10 80…

A: 1HNMR spectroscopy is useful to determine types of hydrogens, signals, splitting etc and hence we…

Q: a) b) Predicting Acidity Rank the following compounds in order of increasing acidity: 1 1 1 OH LOH…

A: Electron withdrawing effect (-R and -I ) increases the acidic strength of acids.

Q: An unknown compound described by the spectra below is a liquid (b.p. 161 C) with a measured…

A: The mass spectrum, IR-spectra and the 1H-NMR spectra of a unknown organic compound is given. The…

Q: Q.5. What is the most likely molecular formula of a compound with m/z of 101 for its molecular ion,…

A: Mass spectrometry is used to determine a sample's molecular mass and molecular formula. Some…

Q: A primary amine will demonstrate which of the following characteristics on its mass spectrum?…

A: A mass spectrum is the representation of relative abundance on the x-axis vs m/z on the y-axis. Each…

Q: Propose the molecular formula for a compound that exhibits the following peaks in its mass spectrum…

A: Given ,

Q: CH,O OCH, CH,O осн II IV Oa V Ob." O.!

A: 1-H NMR spectroscopy, also known as proton nuclear magnetic spectroscopy, is a technique used to…

Q: An unknown compound has the following spectroscopic properties: Mass Spectrometry: m/z 102 (very…

A: 1H-NMR is the main technique used for the identification of complete structure of the compound other…

Q: Predict the relative intensities of the M and M+ 2 peaks for the following. Q) CH3CH2SH

A: The relative intensity of peaks depends on the relative abundance of isotopes of the atom present in…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.