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- 1Но LIGH + Cv (NO3)3 911₂0 ㅋ HH₂0, 120°C32904 24h ount B Used 0.839) - terephthalic and 09 Used 2,0g - Cr (103) 3 9H₂0Which of the following molecules is represented in this IR spectrum? INFRARED SPECTRUM TRANSMITTANCE 0.8 000 0 ABCD 0.6 0.4 0.2 3000 Wavenumber (cm-1) NIST Chemistry WebBook (http://webbook.nist.gov/chemistry) A B 2000 -NH₂ CH3 OH с 1000 A при OH
- What structural features of Hydroxypropyl Acrylate (HPA) allow it to be detected by HPLC?Please explain how to use DEPT spectraHalogenated compounds are particularly easy to identify by their mass spectra because both chlorine and bromine occur naturally as mixtures of two abundant isotopes. Recall that chlorine occurs as 35Cl (75.8%) and 37Cl (24.2%); and bromine occurs as 79Br (50.7%) and 81Br (49.3%). At what masses do the molecular ions occur for the following formulas? What are the relative percentages of each molecular ion? (a) Bromomethane, CH3Br (b) 1-Chlorohexane, C6H13Cl
- Ater analyzing a mass spectrum you conclude that the molecule being analyzed has the molecular formula C4H8; however, there are five possible constitutional isomers with that same molecular formula. the only thing that stands out in the mass spectrum is a strong fragment signal at m/z=41. Determine the possible constitutional isomers for C4H8 and explain which isomer matches the mass spectrum.Why do aldehydes, esters, and amides all have a strong absorption in the 1630-1780 cm1 region of their IR spectra? A) The bond between H and the sp³-hybridized C in these functional groups vibrates in this energy range. B) Each of these functional groups has at least two resonance structures, and the different vibrations of the resonance structures give off energy in this region. C) The bond between O and the sp²-hybridized C in these functional groups vibrates at a frequency in this energy range. D) Light at this wavenumber causes the average C to O bond length to increase which causes more of this light to be transmitted. E) An electron in the bond of these functional groups gets excited to the * orbital.Which of the following molecules is represented in this IR spectrum? INFRARED SPECTRUM TRANSMITTANCE 0.8 0.6 0.4 0.2 3000 Wavenumber (cm-1) NIST Chemistry WebBook (http://webbook.nist.gov/chemistry) B 2000 -NH₂ CH3 OH с 1000 D OH
- 15) Chemical Formula: CsH8O₂ 5x2=10+2=12-8=4/2=2. IR: strong peak 1720cm-¹, 1650cm-1( hard to see but, all peaks that integrate to 1H are doublet of doublets) 5 1H 1H 1 3 3H PPM 3H −2 01A mass peak at m/z = 59 appears in the mass spectrum of an amide, C5H11NO. Draw the structure of a molecule that is consistent with this result.
