того How many signals would in 1H-NMR spectrum de a) Cool Cl a 00262175 the following b) Ht3C CHO CO₂tt CH3

Given the following Infrared Spectrum, Transmittance 1001 90 80 mmm 3100 3000 O A) Pentanal 1/CM 2000 Which of the following compounds is consistent with the spectrum shown above? 1700 D ora H₂C E) 2-Methylpropane-1-amine B) Methoxybenzene C) Benzaldehyde O D) 2-Methylpropanenitrile 1000 H₂C CH₂ NH₂

A'H NMR spectrum is shown for a molecule with the molecular formula of CeH9Br. Draw the structure that best fits this data.

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May you please help me with this ochem question?

NH2 A B Proton NMR: 2.7 (triplet, 2H), 1.7 (nonet, 1H), 1.5 (quintet, 2H), 1.4 (broad singlet, 2H), 1.2 (quartet, 2H), 0.9 (doublet, 6H) Carbon-13 NMR: 44, 37, 30, 28, 23 IR (below): D 4D00 3000 2000 1500 1000 500 HAVENUMB ERI I-Z I-Z TRANSHETTANCEI

please help me draw a HNMR spectra of the following molecule

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When the 1HNMR spectrum of an alcohol is run in dimethylsulfoxide (DMSO) solvent rather than in chloroform, exchange of the Ο-H proton is slow and spin-spin splitting is seen between the Ο-H proton and C-H protons on the adjacent carbon. What spin multiplicities would you expect for the hydroxyl protons in the following alcohols? (a) 2-Methyl-2-propanol (b) Cyclohexanol (c) Ethanol (d) 2-Propanol (e) Cholesterol (f) 1-Methylcyclohexanol

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/.)