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- I have a question about this problem working on it study group my friend says the ee is already a percent and you would add the 12.5% because the remaining 25% is the race mix and s is half of the race mix. I am lost because I thought to find the ee you do ( observed rotation/ the specific rotation) which is what the majority of online sites say I got 0.748 &74.8 or 75% and they got 75 & 87 can someone please help and explain, I have also attached an image of what my professor said as well.I have a question about this problem working on it study group my friend says the ee is already a percent and you would add the 12.5% because the remaining 25% is the race mix and s is half of the race mix. I am lost because I thought to find the ee you do ( observed rotation/ the specific rotation) which is what the majority of online sites say I got 0.748 &74.8 or 75% and they got 75 & 87 can someone please help and explainAttach a schematic diagram showing the procedure involved in the determination of observed rotation and calculation of specific rotation.
- Can ypu explain to me why the answer is letter C.do they absorb light between 200-400nm?1. What is the specific rotation of glucose(MW 180) with a density of 1.56g/mL and an angular rotation of +1.24° in a 1dm tube? 2. A 10.0% Atropine solution was analyzed using a polarimeter in a 2 dm tube, the reading from the polarimeter was +1.22° and the solvent alone is +1.20°, calculate its specific rotation. 3. An Aspirin solution was placed in an oven at 60°C. The absorbance was taken every month for 3 months. The kinetic profile equation is y= -0.0165x – 1.205. If Aspirin was manufactured November 26, 2021, what is its expiration date?
- Select the best pair of answer below justifying the reason for your choice. Answer Q48 & 4910. Determine the structures of each compound with the given information. A) CsH12 2.0 1.2 1.8 LEO 40 1.5 160 30 140 1.4 1.20 1.2 100 20 B) C4H6O4 IR Data (format= shape of peak, intensity of peak): 3420 cm' (broad, med.), 2932 cm (broad, strong), 1695 cm (narrow, strong), 1419 cm¹ (narrow, med.), 1311 cm (narrow, med.), 1203 cm' (narrow, strong), and a few other weak peaks between 924- 638 cm¹. 1.0 BO Mu 0.8 10 1 0.5 Soivent 0 www.qq.cong 20From your results, which component had the highest Rf value and which had the lowest? Based on your answer from the previous question, what could be the reason behind some components having an Rf value higher than the others? Compare the qualities of the two components that rendered the highest and lowest Rf After performing the simulation, what do you think are the possible practical applications of chromatographic techniques that are relevant to your program NURSING?
- Calculate the specific rotation of a pure sample of a secondary alcohol that gave an observed rotation of + 15.8o in a cell 20.0 cm long. The density of alcohol is 0.848 g / mL.5. A sample of a red dye and a sample of a blue dye both have the same concentration. Their Absorbance is measured using the same spectrophotometer. At a particular wavelength, will both samples give the same Absorbance reading? Why or why not?TRANSMITTANCE 6. What functional groups are present in the following IR spectra INFRARED SPECTRUM 2000 verder o INFRARED SPECTRUM 1000