2. Below are two other organic dyes that both produce a yellow color when dissolved. Which of the solvents used in this experiment (select one solvent for each dye) could be used to dissolve samples of each of these dyes (individual samples, not a mixture)? HN- Radiant Yellow Alizarine Yellow OH Na

C. The NMR spectrum shown below represents the product (ethyl 4-aminobenzoate) after it has been shaken with deuterium oxide (D₂O). Write the equation for the reaction which occurs when D₂O reacts with ethyl 4-aminobenzoate. Draw the structure of the compound next to the spectrum and label the protons so that they match the letter labels shown on the NMR spectrum. Fill in the Chemical shift, integration and multiplicity in the table. D. on the results of the "D20 shake". What happened to the signal which had been caused by HD? Explain briefly. B' A 10 ppm EQUATION: 5 ppm E υ C' STRUCTURE: Proton label Chemical shift | Relative integration Multiplicity (ppm) A' B' C' 0 ppm E' Comment on the results of the "D20 shake". What happened to the signal which had been caused by HD? Explain briefly.

Which tracking dye is used in SDS-PAGE? O bromothymol blue O bromophenol blue O coomassie blue O acridine dye

Organic chemistry 2: from the attached NMR spectrum what can be the proposed molecule that corresponds to the spectrum. Please discuss how how you arrived at the identity of the compound.

A student was trying to determine the identity of an unknown compound.  The melting point of the compound was 117-118oC. The student narrowed the possible compound down to the following:   Compound Melting Point Range acetanilide 113-115oC fluorene 114-116oC mandelic acid 120-122oC A second student, doing the same experiment as above, found that their melting point was 100-108oC.  What is wrong with the student’s melting point? Propose two reasons why the melting point could be incorrect. View keyboard shortcuts

These are IR spectra images that were taken in our lab (first is benzoic acid). Explain the IR peaks corresponding to the functional groups for both products.

1B. Can 1H NMR spectroscopy be used to differentiate between the two compounds? Briefly explain why or why not. Predict the 1H NMR spectrum for each compound (include integration, multiplicity, and approximate chemical shift). Put it in data table format.

3. 'H-NMR interpretation When dissolved in CDC13, phenacetin shows 6 signals. All of the peaks are sharp, except for the signal f not below. Draw the chemical structure of phenacetin, labeling each hydrogen with an alphabetical letter. Make a larger version of the chart below (half or full page), and complete it with the missing information. Explanation of splitting patter 8 (ppm) Letter # H (integration Splitting pattern value) 7.94 f 1 Broad singlet 7.36 e 6.80 d 3.98 с 2.09 b 1.38 a Extra Credit Question 4. Describe/predict how the 'H-NMR spectrum differs for acetaminophen.

the Infrared spectroscopy experiment  by using(FTIR) to identify the unknow compound from the list : EthanolIsoamyl acetateHexanal1-PropanolAnisaldehydeValerophenoneBenzoic AcidCyclohexanonemethyl iso-butyl ketoneBenzyl alcoholPropionaldehydeBenzaldehydePhenylacetic acid3-methylcyclohexanoneMethanolEthyl acetatePinacolonewhich compound is represented in the picture ?

In this session you will attend a demonstration of the technique used to obtain an infrared spectrum of a Ibuprofen. CH3 CH3 LOH cos H₂C Ibuprofen 1. Attach the Infrared spectrum of that Ibuprofen here and comment on the peaks based on IR absorption frequency chart