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Based on the general procedure for this reaction, how much of each reagent is needed to produce the reaction?
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- You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.You find that methylphenidate is highly soluble in 2-methyltetrahydrofuran, a bio-renewable solvent. Draw the structure of 2-methyltetrahydrofuran and give two reasons why it is a good solvent choice for liquid-liquid extraction.Useful Information: sodium metam: Commercial grade sodium metam is 33% pure sodium metam by weight and has a density of 1.2 g/mL. Hydrolysis of metam (Methyl isothiocynate) + H2S Rate constants for hydrolysis for metam (base catalyzed hydrolysis is negligible) = 300 mol -1 L. sec -1 , = 1 x 10-8 sec-1 Metam also undergoes photolysis to methyl isothiocyanate with a half-life of 1.6 hrs. Data for Sacramento River discharge Q = 75,000 L/min mean depth = 0.30 m pH = 7.8 mean width = 3.2 m dispersion coefficient D = 1.6 x 102 m2/min Assuming the spill acts acts as a single point source. How long does it take for the maximum contaminant concentration to get to Lake Shasta? If Na+ acts as conservative (i.e., it is not transformed) tracer, calculate the maximum concentration (in g/L) at Lake Shasta. (Hint: remember that sodium only constitutes a…Emily synthesized acetanilide by stirring aniline and acetic anhydride together in water at 100C. Acetanilide is a solid at room temperature, while everything else is a liquid. Emily noted that while the reaction was running, everything was dissolved and the liquid was a pale orange. Emily allowed the reaction to cool to room temperature and then cooled it in an ice bath. After the slow cooling, a solid appeared. 1. Based only on Emily's observations from this procedure, what solvent does she know will work to recrystallize the acetanilide if needed? aniline aqueous ethanol water acetic acid
- Emily synthesized acetanilide by stirring aniline and acetic anhydride together in water at 100C. Acetanilide is a solid at room temperature, while everything else is a liquid. Emily noted that while the reaction was running, everything was dissolved and the liquid was a pale orange. Emily allowed the reaction to cool to room temperature and then cooled it in an ice bath. After the slow cooling, a solid appeared. 1. Based only on Emily's observations from this procedure, what solvent does she know will work to recrystallize the acetanilide if needed? aniline aqueous ethanol water acetic acid 2. According to PubChem, acetanilide melts at 114°C. Emily measured a melting point of 96 - 104°C for the solid they collected. What can be said about this solid? - Melting point does not indicate whether a sample is pure or not - The experimental range is narrow and close to the literature value, suggesting it is not completely pure - The experimental range is narrow…At 25°C, for benzoate ion Kp = 1.54 x 10-10 while for ethanoate ion K = 5.5 x 10-10. Choose the correct answer: Select one: Ethanoate ion is a stronger base than benzoate ion but ethanoic acid is a weaker acid than benzoic acid. Ethanoate ion is a stronger base than benzoate ion but ethanoic acid is a stronger acid than benzoic acid. Ethanoate ion is a weaker base than benzoate ion and ethanoic acid is a weaker acid than benzoic acid. Ethanoate ion is a weaker base than benzoate ion but ethanoic acid is a stronger acid than benzoic acid.h) a OE 1) "Buli/THF/t/1.5h 2) -SCH CH₂ /d/1h TICU CH₂C-780/15 min PPhy/1₂11 imidazole/THF o'℃-n acer
- Iron(III) Chloride Test Saved BIIIU X2 | X² | → Ix Normal Alcohol FeCl3 test color Ethanol 2-Propanol 2-Methyl-2-propanol Cyclohexanol Phenol N/A Unknown ll !!How do we detect organic compounds and inorganic compounds used in GC analysis?08:12 r ||| 3. The final product is removed from the organic layer by extraction with the hydrochloric acid solution. Draw the curved arrows for the proton transfer reaction that takes place, and draw the resulting product. Explain how this reaction enables the removal of the lidocaine from the organic layers. dr organic layer by extraction proton transfer reaction the on enables the removal of of th H-C < O <3 H-CI pan 3 and pat C of the i. || | Peter
- You perform the reaction, and monitor its progression by TLC every 30 minutes for 3 hours. The lab manual shows the developed TLC for the reaction, with the two starting materials 2,6-dimethylaniline (DMA) and p-nitrobenzylchloride (NBC) spotted in the left most lanes as co-spots. How long does it take for this reaction to reach completion? (A) The reaction has reached completion and should be stopped after 90 minutes B The reaction has reached completion and should be stopped after 120 minutes C) The reaction has reached completion and should be stopped after 150 minutes D) The reaction has reached completion and should be stopped after 180 minutes E The reaction does not reach completion in 180 minutes and should be left to continue with TLC monitoringTo determine the purity of a synthetic preparation of methylethyl ketone, C4H8O, it was reacted with hydroxylamine hydrochloride, liberating HCl (reaction: NH2OH.HCl + C4H8O -> C4H9NO + H20 + HCl). In a typical analysis a 3.00-mL sample was diluted to 50.00 mL and treated with an excess of hydroxylamine hydrochloride. The liberated HCl was titrated with 1.2149 M NaOH, requiring 35 mL to reach the end point. A. Write the acid base reaction involved in the titration. B. Report the percent purity of the sample given that the density of methylethyl ketone is 0.805 g/mL.Balance the following redox reactions, to their simplest form, by supplying the correct coefficients before each compound for #s 1-15. The unknown coefficients of the compounds should be whole numbers. Note: The reactions below are not yet balanced.