Based on the IR spectrscopy,  identify if the liquid compound is 3-methyl-3-buten-1-ol, 1-octene, decane, benzophenone, cyclohexanol, benzoic acid, vanilin, or lidocaine?

Q: Calculate the enantiomeric excess for the sample of (S)- ibuprofen sample and (R)-ibuprofen sample…

A: Given, Amount of (S) - ibuprofen recovered from polarimetry = 0.745 g Amount of (R) - ibuprofen…

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A: In the NMR spectrum of Vanillin, the 3 protons corresponding to the -OCH3 group must give a singlet…

Q: An oxygen-containing compound shows an absorption band at 1700 cm-', and no absorption at 3300 cm',…

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Q: Assign the important peaks in the IR spectrum below and identify the name of the functional group.…

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Q: p-dihydroxybenzene and o-dihydroxybenzene can be separated by TLC using a solvent of medium…

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Q: The red line shows the average total charge on each molecule in solution (right axis), while the…

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Q: Based on the IR spectrscopy, identify if the solid compound is 3-methyl-3-buten-1-ol, 1-octene,…

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Q: When free in solution (i.e., not bound to opsin), both all-trans and 11-cis retinal have absorption…

A: The geometry of the molecule may be changed by the exposure of light, that is, compound can be…

Q: Since there are some inherent issues with polarimetric measurements of enantiomeric purity, suggest…

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Q: Which combination cannot be used as mobile phase in RPLC? A. Water-acetonitrile B.…

A: Which combination cannot be used as mobile phase in RPLC? The combination is given below.

Q: Predict the splitting pattern marked proton by suggesting for (…

A: Splitting of a proton NMR signal is done by the  hydrogen present on the adjacent carbon. The number…

Q: Could this IR spectrum of an unknown liquid be a carboxylic acid? The boiling point is around 147 C.

A: Given, The boiling point of the carboxylic acid is around 1470C. The structure of the carboxylic…

Q: What are the functional groups of this FTIR spectrum?? if possible, what is the sample? could be…

A: A question based on IR spectroscopy that is to be accomplished.

Q: 1-Butanol, 3-methyl- Mass Spectrum 120 100 80 70 31 27 29 60 39 40 15 20 18 19 24 25 33 34 35 36 59…

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Q: Use the Cahn-Ingold-Prelog sequence rules to assign the configuration as R or S to the following…

A: According to Cahn-Ingold-Prelog rule- 1) More atomic number having more priority.2) If first atom is…

Q: Look up the SAR findings of Sulfonamides from literature and draw out generalized 3D pharmacophore…

A: Following are the 3D structures given below-

Q: What are the major IR absorptions in the functional group region for attached compound?

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Q: Using the TLC profile below with hexane:ethylacetate as mobile phase, which of the spots represent…

A: The Diels alder reaction between maleic anhydride with Anthracene is as follows. We have to…

Q: 2873 32 1739.51 1465.18 1387.71 1366.42 1171.25 1054 72 961.35

A: Given: Infrared spectrum of an unknown compound To find: To identify the unknown compound by using…

Q: If the imaginary replacement of either of two protons forms enantiomers, then those protons are said…

A: As mentioned in the question, if the imaginary replacement, say Chlorine, of either of the two…

Q: Answer ALL parts of this question. (a) Use the Cahn-Ingold-Prelog rules to assign the configuration…

A: 1.)To write the Newman projection of the compound, rotate the molecule 90 degrees and look at it…

Q: Using the 13 rule and Hydrogen deficiency indicator (HDI) determine the Molecular formula and…

A: 13 rule of mass spectroscopy: The rule of 13 is used to identify possible molecular formula for…

Q: Predict important HNMR peaks that would show for the structure of caffein

A: HMNR Peak- This is the easiest to interpret. The number of peaks correspond to the number of unique,…

Q: 5. For each of the following IR spectra, identify whether it is consistent with the structure of an…

A: IR spectroscopy It involves the analysis of a molecule with IR spectroscopy. It is used to determine…

Q: Q. Which of the following is not used as pyroelectric material used in pyroelectric transducers in…

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Q: create a separations flow chart for Sb3+, Fe3+, Zn2+, Al3+, Cd2+ without using sulfides or…

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Q: Predict important IR peaks that would show for the structure of caffeine in an IR spectra

A: IR spectra: This spectroscopic technique is used to identify the functional groups that exist in…

Q: Suppose that the two pigments in two samples contain red pigment and that the red pigment in sample…

A: The question is based on the concept of chromatographic separation. it is an experimental technique…

Q: Few strong and medium peaks have been detected through IR Spectroscopy of an unknown sample. The…

A: The ir spectrum are specific for functional group. Like 1710 cm^-1 this is specific for carbonyl…

Q: Can you give an example of homotopic, heterotopic, enantiotopic, and diastereotopic for compounds?

A: Topicity is the stereochemical relationship between substituents and the structure to which they are…

Q: Give and observation and inference when the compound hexane is subjected into test for Br2 in CCl4

A: Br2 in CCl4 is used for bromination of unsaturated hydrocarbons (alkenes and alkynes)

Q: Calculate the HDI, list important peaks from the IR spectrum and the functional group they…

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Q: Interpret the IR data and describe the significant peaks. Suggest a possible structure for the given…

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Q: annotate the IR Spectrum (including the C-Cl stretch and everything after finger-print region)

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Q: 9. (a) Substitution of an amino group at the para-position of autophenone shifts the C=0 frequency…

A: IR spectroscopy works on the principle that molecules absorb specific  frequencies in the IR region…

Q: Show how the Cahn-Ingold-Prelog sequence rules are used to assign the geomet either E or Z. COOH но

A: According to " Cohn ingold prelog " rule  Rank the atoms directly attached to the olefinic carbon…

Q: 2. Molecular Formula: CaHsO2 Chemical Shift Integration Mutliplicity (ppm) 3.9 3 1 2 singlet triplet…

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Q: Which of the following carotenoid structures below would you expect to have the lowest RF in a…

A: Given compounds are: Lycopene: It is the red color hydrocarbon found in tomatoes and in all red…

Q: 5. Which of the following materials (B- E) could be used to carry out the optical resolution of…

A: Whenever a particular enantiomer is needed in pure form, an optically pure chiral molecule can be…

Q: Aldehydes, ketones, carboxylic acids, and esters all give strong carbonyl stretchingabsorptions in…

A: The general structure of aldehyde is RCHO. The general structure of ketones is RCOR'. The general…

Q: What peaks will appear in the IR spectrum of cyclopentanone (structure shown below)? -1700 cm and…

A: Applying IR spectroscopy and IR stretching frequency of functional groups.

Q: Name Melting point (°C) Unknown 121-122 Mandelic acid 120 Benzoic acid 123 Unknown + Benzoic acid…

A: Melting point of a substance is used to determine the purity of a substance. Melting points of…

Q: - What patterns do you see in all of the compound models?

A: Pattern seen in formation of MgO

Q: Which combination cannot be used as mobile phase in RPLC?  A. Acetonitrile-cyclopentane B.…

A: Which combination cannot be used as mobile phase in RPLC?  answer is given below with explanation.

Q: What should the integral be for the peak at 12.25 ppm?

A: NMR spectroscopy is an analytical technique which is used for structural elucidation. It is based on…

Q: Give the interpretation of peaks of the IR spectra

A: IR spectroscopy is an analytical technique which aids in structural elucidation of a compound. The…

Q: What does it mean in IR spectra when a functional group has strong, medium, or weak intensity? Is it…

A: IR spectrum is basically a plot of transmitted (or absorbed) frequencies Vs intensity of…

Q: The IR spectra presented below indeed belongs to one of the compounds shown in the list. Identify…

A: An infrared spectrometer determines the positions and relative sizes of all the absorptions, or…

Q: I need help to perdect the ir spectreum digram for the staring matrial  and also for it need to…

A: Tp predict the functional group present in the starting material and and its IR diagram. The…