он он NH2 threonine

Q: 1. Below is the structure of N-a-acetyl-lysine. LHO H2N 'N' H unotos TEE MHD N-alpha-acetyl-lysine…

A: "Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: 3. Below is a Fischer projection with its six carbons numbered. H. H OH но H- -OH Но (a) Assign the…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A *H3N-C-H CH3 C H3C-C-NH3* H Four Fischer projection representations of alanine are shown below,…

A: The DL configuration of an organic compound is a relative configuration with respect to D and…

Q: 2. Draw structures for furanose and pyranose forms of D- lyxose. Draw the scheme of a tautomeric…

A: Furanose is a heterocyclic five-membered ring compound containing 4 carbon atoms and an oxygen atom.…

Q: 2) Part 1: Draw D-glucose in its proper Fischer Projection (using the template below). Part 2: Draw…

A: Given

Q: CH2OH H- HO- НО H- -ОН CH2OH D-Sorbose

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 2. What is the relationship between (S)-proline and (R)-proline? What about…

A: Since you have asked multiple questions, we will solve the first question for you. if you want any…

Q: stereoisomers of 2,3-diaminosuccinic acid How many are there? Draw all possible starvoisomers NH₂…

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Q: What is the conjugate acid of HSe-1? Select one: a. H2Se b. H3Se+1 c. Se-2 d. H2SeO4

A: A base is the chemical species which takes up proton (H+) and an acid is the chemical species which…

Q: 2. Draw the Haworth projection of the a-anomer CHO HO-H HO- H- H- H OH CH2OH

A: to form a cyclic structure using hetro atom

Q: 5. The reason chloroacetic acid has a lower pKa than acetic acid is [a] resonance [b] chirality [c]…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: Consider alanine a. How many chiral centers? b. How many stereoisomers? c. Draw the fischer…

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Q: Proline is an unusual amino acid because its N atom on the α carbon ispart of a five-membered ring.…

A:

Q: Proline is an unusual amino acid because its N atom on the α carbon is part of a five-membered…

A:

Q: The [a] of pure quinine, an antimalarial drug, is -165. If a solution contains 82% quinine and 18%…

A: The observed optical rotation α can be found out using the formula,  ee=observed optical…

Q: 20. For each pair of compounds, determine whether they are enantiomers or diastereoisomers. b.

A: Enantiomers are non-superimpossable mirror images of each other and diastereomers are the non-mirror…

Q: 2. Give TWO Fischer projections that correspond to (S)-2,3-dihydroxypropanoic acid shown below. 24.5…

A: Fisher projection

Q: In the cream type test using methylene blue, when methylene blue is added to the cream, drops of oil…

A: 25.T type of emulsion is Oil in water in which oil seems like droplets. So correct answer is option…

Q: Threonine is a naturally occurring amino acid that has two stereogenic centers.a. Draw the four…

A: The four possible stereoisomers of threonine are:

Q: Draw the Haworth projection of N-acetyl-β-L-mannosamine. Is this a pyranose or a furanose?

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Q: Describe how the following anticoagulants prevent clotting.             a.) Sodium or lithium…

A: How the following anticoagulants prevent clotting is given below.

Q: QUESTION 25 Label each chirality center (a and b) as R or S. lia OH CI HO H CH3 a a: R b: R a: R b:…

A: The answer is given as follows  b = R a = S

Q: Mannose is an aldohexose with relative stereochemistry AABB. i) Draw the Fischer projection of…

A: Fischer projection is the representation of the organic molecule in two-dimensional form whereas…

Q: Draw the structure of glutamic acid at pH of 3.22 and 11.00

A: Amino acids contain carboxylic acid and an amine functional group on the same carbon atom. Amino…

Q: Alanine has pK, values of 2.34 and 9.60. At what pH will alanine exist in the indicated form?…

A: Amino acids exist as zwitterions in the isoelectric point.  pKa and pH are related oppositely.  More…

Q: a) The Haworth projection of a-D-Mannose is given below. Draw theFischer projection (open form) and…

A: The Haworth projection of a-D-Mannose is given below :

Q: 23. How many stereogenic centers are present in the following compound? он A) 1 B) 2 C) 3 D) 4 24.…

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Q: 3. Identify the LG and then determine if it is a good or bad LG. rоснз FỌCH3 -ОН2 ОН2 good or bad…

A: Leaving group in all the three cases are as follows :

Q: Examine the amino acid sequence of human insulin (Figure 27.16) and list each Asp, Glu, His, Lys,…

A: In the amino acid sequence of human insulin, Asp (Aspartic acid) molecules are not present, Glu…

Q: d) The literature specific rotation of (d)-epinephrine is 53 degrees. You measure the rotation of a…

A:

Q: How many possible stereoisomers can there be after the lipid is reduced by NaBH4? но estrone 32 10 O…

A: Chiral centre (n) is an sp3 hybridized carbon having four different groups. Total number of…

Q: (iv) Re-draw the amino acid below in a Fischer projection. H2N но, Me

A: The Wedge dash is converted  to fischer in such a way that most oxidized  group at  top and most…

Q: What are the R/S configurations of the sterogenic centers in this molecule?

A: In any molecule, a stereogenic center is a point of location at which interchange of any two groups…

Q: The specific rotation, [a]D, for (+)-alanine is +8.5. What is the observed rotation for a solution…

A: we have to calculate the specific rotation and observed rotation

Q: Consider this molecule drawn in a Fischer projection: H3C. OH H3C но It is R and the -OH is the…

A:

Q: Proline is an unusual amino acid because its N atom on the α carbon is part of a fivemembered ring.…

A: The structure of proline is,

Q: Draw a molecule of 4-amino-3-phenylhexa-2,4-dien-1-ol

A: Draw a molecule of 4-amino-3-phenylhexa-2,4-dien-1-ol ?

Q: A student performed the ninhydrin test then Tollens' test immediately after, using the same…

A: To answer question 19 and question 20

Q: 3. How many stereogenic centres does the cholesterol have? А. 5 но В. 6 C. 7 cholesterol D. 8

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Q: Explain why adding D20 to an alcohol or carboxylic acid makes the-OH peak disappear.

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: (d) Draw the structure of the expected product when monosaccharide C undergo mutarotation upon…

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Q: 6.2 Use the given templates with C1 on the left hand side of the line structures to draw the three…

A: Enantiomers: The chiral molecules that are non-superimposable mirror images to each other are known…

Q: a. Draw a three-dimensional structure for the following steroid. b. What is the structure of the…

A: a. In 3D structure, each color represent a specific atom and each line represents each bond present…

Q: сно HO-H но H- H20 OH H- CH2OH draw the B-pyranose in chair form

A: Note: According to our guidelines we are supposed to answer only one question . Kindly repost other…

Q: OH HNO2 NH2 H2N `NH2 OH 4,5-diaminopyrimidines 4-hydroxypyrazolo(3,4-d)pyrimidine aka: Allopurinol

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Q: bacterial enzyme topoisomeraselV and provides a first step in preventing DNA replication in…

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Q: Label each statement as true or false H2CH32 is the conjugate base of CH3CH2+

A: According to the explanations by Bronsted-Lowry, if a species loses a proton then it is an acid…

Q: Which of the following is the best representation of an aqueous lysine ? CH2 CH2 CH2 CH2 H,N-Ç-COOH…

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Q: (b) The optical rotation of a- and B-anomers of D-glucose are [a]p = +112.2° and [a]p = +18.7°, %3D…

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NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.