4 1 HO 13 a) Write the chemical shift (do not give range) and splitting for each hydrogen in the following table: Hydrogen number Chemical shift Splitting (multiplicities)
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- For the isomers of C5H10: (a) find # signals, chem shift ranges, integration, splitting (b) match the isomer to the spectrumWhat is the m/z value produced for the molecular ion by the ionization (i) EI and (ii) ESI for the following molecules: (a) propanol (b) t-butyl amine (c) acetone (d) hexane(b) Determine the topicity of the groups or atoms indicated and comment on their magnetic equivalence : ÇH3 CH3 c=c=C=C H C60 (A) (B) /840
- Atomic refractions: C(sp3): 2.8158; C(sp2): 3.8276; C(sp): 3.8974; H: 0.915. Knowing that the refractive index of benzene is 1.4956 (with the Na line D), indicate the molar volume of benzene.(1). 22.1 cm3/mol (2). 76.6 cm3/mol (3). 97.6 cm3/mol (4). 98.8 cm3/mol13C(1h) what is bracket mean in this case? is that mean carbon nmr proton nmr in same time?What is the chemical shift, multiplicity, and integration?
- Does the exclusion rule apply to H2O?258, 217, 175 nm are Amax for the observed to π* transition in UV-Vis. Choose from the following compounds to answer the questions below. A) Ethylene B) 1,3 butadiene C) 1,3,5 Hexatriene D) Ethane Compound(s) with Amax = 258 nm for the observed to T* transition in UV-Vis is/are: Choose... Compound(s) with Amax = 175 nm for the observed it to n* transition in UV-Vis is/are: Choose...Two infrared spectra are shown. One is the spectrum of cyclohexane, and the other is the spectrum of cyclohexene. Identify them, and explain your answer. (a) 100 * 80 60 40 20 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm-1) (b) 100 * 80 60 40 20 Transmittance (%) Transmittance (%)
- The following molecular ion isotopic clusters correspond to derivatives of benzene (C6H6) for which one or more of the hydrogens have been replaced with chlorines or bromines. What molecular formula corresponds to each mass spectrum? . 100- 80- 60- 40- Relative intensity 20- -M+6 -M+5 -M+4 M+3 M+1 M+2 M+0 (a) -M+6 -M+5 -M+4 M+3 M+2 M+1 -M+0 (b) M+6 M+5 M+4 M+3 -M+2 -M+1 -M+0 (c) M+6 -M+5 M+4 M+3 M+2 -M+1 -M+0 (d) M+6 M+5 -M+4 -M+3 -M+2 M+1 -M+0 (e)(i) Identify TWO (2) functional groups presence in the molecule and state their frequencies. (ii) Predict the possible chemical structure of molecule based on the IR spectra with chemical formula C7H8.Prove the following identities. (a) [t, p²] = 2ihp (b) [p, ²] = -2ihâ