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- What is the 2,4-DNP test and how it help to determine if the reaction was successful?EXPLAIN differences in fragmentation in isomers The following two mass spectra represent 1-bromo-4-ethylbenzene and (1-bromoethyl)benzene, respectively.How would you interpret this IR spectra of fluorene? What I mean by this is which peaks let you know its fluorene and which peaks show impurities if any such as 9-fluorenone since this lab required a separation of fluorene and 9-fluorenone. Other impurities could be solid alumina and sand and the solvents of pet. ether and dichlormethane.
- identify and interpret the peaks and their characteristics (C=O, 4H, doublet) product name: dulcin (4-ethoxyphenylurea) (C9H12N2O2) images include CNMR, HNMR, and IR spectroscopy9) What would be the difference between the 4 alcohols in IR? They all show O-H, C-H sp3, and C-H aromatic bonds. The only way to tell which one is used would be by comparing the fingerprint regions to published IR spectra of each alcohol. Alcohol 2 has an aldehyde C-H group that could be seen between 2700-2800 and 2800-2900 cm-1 Only alcohol 3 will show O-H bond around 3300 cm-1 Only alcohol 1 will show C=C aromatic bonds around 1600 cm-1 10) Assuming 5.0 mL of alcohol 2 was used and 2.2 g of the product was isolated, what is the percent yield for this reaction? The product has a molar mass of 198.00 g/mol. 11) How could the percent yield be increased for this reaction? Add NaOH to neutralize the product as it forms Add a catalyst such as H2SO4 to help speed up the reaction Add a catalyst such as HCl to help speed up the reaction Cool the reaction on ice to increase the rate of reaction 12) Is there another way that the product of this reaction…Can you list the peaks in the IR that are seen in the diagnostic region and tell me what bonds and functional groups they represent? The IR spectrum is of 1-bromobutane
- The reduction of 4- nitrobenzaldehyde using sodium borohydride,MaBH4 in ethanol which would not show a peak in spectrum? about 2850-2950 3400 3050-3150 1700What are the differences in the regioselectivity of lithiation of 2-chloropyridine when it reacts with LDA and [BuLi.LiO(CH2)2(NME2)]?What mass spectral fragments are formed from α cleavage of pentan-2-one,CH3COCH2CH2CH3?
- Why benzene absorbs at 254 nm in the UV and phenol C6H5OH absorbs at 280 nm?The molar absorptivity of 2,5-dimethyl-2,4-hexadiene in methanol is 13,100 M-1cm-1. What concentration of this diene in methanol is required to give an absorbance of 1.6? Assume a light path of 1.00 cm. Calculate concentration in these units. Q.) Moles per literWrite TRUE if the statement is correct and FALSE if the statement is wrong. Please answer them all Substitution reactions do not occur in aromatic rings because of pi-electron delocalization. The resulting iodinated aspirin has a higher Rf compared to aspirin after visualizing with ferric chloride. The mobile phase used in determining the Rf of the iodinated aspirin is 5% ethyl acetate in acetic acid. When isopropyl alcohol reacts with HCI, the resulting product is 2-chloropropane. In Fehling's test, the theoretical product after an aldehyde is mixed with Fehling's Solution is alcohol. lodoform, which has a molecular formula of CH3l, is indicative that a ketomethyl group is present. Based on the physical property, hydroquinone has a lower boiling point compared to catechol. Picric acid, being a phenolic compound, tests positive for the FeCl3 test. Nucleophilic molecules are electron-rich molecules that can "attack" electron-deficient molecules. When FeCl3 is used in visualizing…