Proton NMR (1H NMR ) is best method for identification of enentiomers and diasteriomers
Homotopic Hydrogen: Giving identical chemical shift in 1H NMR
Enentiotopic Hydrogen: Giving different chemical shift in chiral enviranment ( in chiral solvent )
Diasteriotopic Hydrogen: Giving chemical shift in all condition
These compounds I,J and K are diasteriomers
You have been given a white powder that contains one of the following compounds What methods)...
Three bottles A, B, and C have been found, each of which contains a liquid and is labeled \"amine C8H11N.\" As an expert in amine chemistry, you have been hired as a consultant and asked to identify each compound. Compounds A and B give off a gas when they react with NaNO2 and HCl at 0 ℃; C does not. However, when the aqueous reaction mixture from the diazotization of C is warmed, a gas is evolved. Compound A is...
You have been given a task to differentiate between the images of a cat and a dog. You have been given a dataset of 50000 coloured images of size 40x40 which contains either a cat or a dog. Being as specific as you can, please detail the procedure of how you are going to solve this problem.
6a) During experiment 7, you performed column chromatography in order to separate two main compounds from tomato paste. What are these two compounds? 6b) Is this separation technique a chemical or physical method of separation? 6c) What color is each of these compounds? What about their molecular structure gives rise to their color? 6d) During the experiment, we only observed one band on the column even though we should have observed two. However, you may have noticed, we had in...
"Inventory Costing Methods" Please respond to the following: DQ #1 Assume that you have been hired as the production manager of a manufacturing company and must determine the best inventory costing system to implement. Discuss two factors that must be considered before making the determination. DQ #2 As a production manager, one of your key tasks is to improve efficiencies by either increasing productivity or reducing cost. Determine whether the responsibility reports needed to track performance should be created by department,...
Question 3 You have been given two respiratory samples suspected with COVID-19. Your lab member did the RNA extraction and isolated the mRNA. Luckily, a collaborator from Wuhan had also given a sequence encoding for gene E of COVID-19 to your lab. Your lab also has equipped with the items below: • Agarose • formaldehyde • Ethidium bromide • TBE buffer • RNA ladder • Nylon membrane • DIG-High Prime DNA Labeling and Detection Starter Kit II By having all...
Assume that you are given an unsorted array that contains 100 items, and you have been asked to write/propose an efficient searching algorithm. Which algorithm would you choose and why? What are the possible trad-offs of the selected algorithm if the array size is increased (e.g., 9000 items)?
please solve the following and show work :) thank you in advance! 1. Assess the following 1H NMR spectra and predict the structures. a) C&HgCl2 PPM b) CH1002 PPM c) CH1002 doublet doublet triplet quartet PPM s d) C-H1202 2) Predict 1H NMR spectrum for the following compound. Chemical shifts should be close but are not expected to perfect. Spin-spin splitting should be included where possible. 3) You have been given two bottles with no labels. However, you have been...
You have been asked to engage in one final project for the chain of department stores for which you have been working concerning the sales of a type of shirt that they carry. Specifically, this time you wish to study the nature of the relationship between the average daily number of hours the stores are open and monthly sales for the month you have been studying. You wish to utilize the average daily number of hours the stores are open...
5) You have been given an unknown that gives a positive 2,4-dinitrophenylhydrazine test. a) What does this positive 2,4 DNP test indicate? b) What subsequent tests could you run to be more specific about the unknown's identity? c) What would you see in the subsequent tests, and what would your observations tell you about the identity of the unknown?
Quantitative Methods and Analysis Course One of the items that businesses would like to be able to test is whether or not a change they make to their procedures is effective. Remember that when you create a hypothesis and then test it, you have to take into consideration that some variance between what you expect and what you collect as actual data is because of random chance. However, if the difference between what you expect and what you collect is...