The 1H NMR of ethanol in CDCl3 will consist of three signals in
the spectra: a triplet at 1.25 ppm, a quartet at 3.72 ppm, and a
broad singlet at 1.32 ppm. In DMSO-d6(deuterated DMSO) the broad
singlet is found at 4.63 ppm. Why is there such a dramatic change
in the singlet’s position (clearly describe what is happening with
structure)?
1. Interpret the infrared and NMR spectra of benzocaine.
2.What is the structure of the precipitate that forms after the
sulfuric acid has been added?
3. When 10% sodium carbonate solution is added, a gas evolves.
What is the gas? Give a balanced equation for this reaction.
4. Explain why benzocaine precipitates during the
neutralization.
5. Refer to the structure of procaine in the table in the essay
“Local Anesthetics.” Using p-aminobenzoic acid, give equations
showing how procaine and procaine...
H NMR For the diastereomers of 1,2-diphenyl-1,2-ethanediol: How
do the H NMR spectra change between the meso diol and either the
R,R or S,S diol? I know that they're different, but I'm unsure why.
If possible it would be nice to see a possible H NMR spectra drawn
out for these two. Thank you for your help.
1. Refer to the Spectroscopic Analysis section of the lab and
determine the pertinent 1H NMR information for aldehydes and methyl
ketones.
2. Look up general IR spectra for aldehydes and ketones and list
wavelengths that correspond to their carbonyl stretches. What
additional peak will be observed for aldehydes?
1. How can the NMR spectrum be used to show that there is no
starting material left in the products?
2. Can the NMR spectrum be used to determine the ratio of
2-hexanol to 1-hexanol?
3. What produces the peak around 3.65 ppm in the
NMR?
1. Differentiate between the insurance of indemnity and
compensation
2. With vivid examples, differentiate between a debtor and a
creditor as it affects the mortgage.
3. Discuss the meaning of Bankruptcy
a. What are the types of bankruptcy
b. In Canada, what type of court handles bankruptcy matters
and why
What can be used to differentiate between secondary Alcohol and
Aldehyde?
Tollens Test
2,4 DNPH
Hinsberg Test
Iodoform Test
A & B
A & D
All the above
None
please provide full explanation I will rate