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- You are provided an unknown sample with the molecular formula C8H9NO. After running the IR, you obtain the following spectra. Name and draw the structure of the compoundCalculate the IHD of C7H6XNO and identify the important peaks in the following MS spectral data and draw the structure of the important peaks in the following MS spectral data.Draw the structural formulas of the following compounds and indicate the number of NMR signals that would be expected for each compound. (a) methyl iodide (b) 2,4-dimethylpentane (c) cyclopentane (d) propylene (propene)
- What is the structure from the formula C10H12O and the spectra?Describe the number of signals and their splitting in the 1H NMR spectrum of (CH3)2CHOCH3. A) 3 signals: 2 doublets and a septet B) 2 signals: a doublet and a septet C) 3 signals: a doublet, a quartet, and a septet D) 4 signals: 2 doublets, a singlet, and a septet E) 3 signals: a singlet, a doublet, and a septetThis is the 13C spectrum for an X compound with molecular formula C7H12O4. The substance is not soluble in NaHCO3 and has a stretch at 1740cm-1 on the IR spectrum. What is the structure of X?
- The following is the predicted 1H-NMR spectrum for an unknown compound with molecular formula C6H14O . This compound is a liquid at room temperature, is slightly soluble in water, and reacts with sodium metal with the evolution of a gas.An organic compound X with a relative molecular mass of 88.0 was found to contain 54.54% carbon, 36.36% oxygen and 9.10% hydrogen by mass. A portion of its infra-red spectrum is shown below. Determine the molecular formula of the compound and deduce possible structure or structures of the compound. A) Butanoic acid B) 1,3-Dioxolan-2-one C) Ethyl Acetate D) 2-Butene-1,4-diol E) Methyl propionate1Compound 1 has molecular formula C7H16. It shows three signals in the 1H-NMR spectrum, one at 0.85 ppm, one at 1.02 ppm, and one at 1.62 ppm. The relative integrals of these three signals are 6, 1, and 1, respectively. Compound 2 has molecular formula C7H14. It shows three signals in the 1H-NMR spectrum, one at 0.98 ppm, one at 1.36 ppm, and one at 1.55 ppm. The relative integrals of these three signals are 3, 2, and 2, respectively. Propose structures for compounds 1 and 2, explaining how you reach your conclusion.
- How many 1H NMR signals expected for the following compound? areMolar mass: 120 Label the major peaks in each spectrum and propose a structure for the compound.Following are two constitutional isomers with the molecular formula C4H8O2. (a) Predict the number of signals in the 1H-NMR spectrum of each isomer. (b) Predict the ratio of areas of the signals in each spectrum. (c) Show how you can distinguish between these isomers on the basis of chemical shift.