. Associate the diagnostic peaks in the IR with functional groups, and assign the signals in the NMR to specific protons. Use this information to deduce the structures of your compounds. 1.4 1.3 1.2 Figure 5. NMR spectrum (300 MHz) of ethyl (R)-3-hydroxybutanoate, with chiral shift reagent added. 1.404 1.383 1.315 1.292 1.267

Q: In DNA, thymine, is paired with ? [thymine, adenine, cytosine, guanine, uracil]. The nitrogenous…

A: In DNA, thymine, is paired with The nitrogenous base not found in RNA is

Q: What are the requirements on the four groups attached to a carbon atom in orderthat it be a chiral…

A: A chiral center is the central carbon atom of the molecule that is attached to four other atom or…

Q: Which rock and roll star has the same name as this hexapeptide in single letter code? NH₂ SH NH₂ NH₂

A:

Q: As we’ve discussed, a peptide bond is made when amino group of one amino acid combines with the…

A: Amino acids contain amine and carboxyl functional group, with a side chain group (R) which…

Q: The amides in the peptide backbone determine the [Select ] structure of a protein and the side…

A: The pattern in which amino acids are linked is called protein's primary structure.

Q: How can two different proteins have the molecular formula, yet have different folds and structures?

A: The biomolecules which have carboxylic and amine group containing monomer units are known as…

Q: CoO -Coo NH, čoo In the diagram the arrow is pointing to a peptide bond. What is the configuration…

A: Given compound is :  Options are :

Q: indicate the number of chiral centers in the following molecule

A:

Q: Determine (A.) functional groups presents in the molecules and (B) determine the number of chiral…

A:

Q: Give a short note on Nomenclature ?

A: Nomenclature: In chemistry nomenclature has great importance. Nomenclature provides classification…

Q: Draw a sawhorse projection for 3-aminobutan-2-ol representing where the two CH3-groups are…

A: In syn-periplaner position, two groups are eclipsed to each other.

Q: QUESTION 19 Briefly explain why there are + and - charges in the amino acid structures in the table…

A:

Q: How does polarized light used for identification of chiral compounds?

A:

Q: НО CHOLESTEROL H,C, CH, CH₂ CH₂ CH₂

A:

Q: A,

A:

Q: CH₂ H₂N ΝΗ CH2 CH₂ CH₂ CH₂ NH₂

A: A peptide bond is formed between two amino acid when these are incorporated to form polypeptide.

Q: how many chiral senters are in this molecule

A: Chiral center: If a carbon center or atom is bonded with the four different atoms or groups, then…

Q: Q4. A section of DNA contains the bases ACGTC, so the correct sequence in the complementary strand…

A: DNA is a nucleic acid which is responsible for heredity . It is a polymer made up of two…

Q: Draw the structure of a diglyceride made from of 2 equivalents of myristic acid and identify any…

A: Didiglyceride is a glyceride made from two fatty acid chains that are covalently bound to a single…

Q: Why do compounds in a homologous series have similar chemical and physical properties?

A: A series of compounds having same functional group and which differ by a -CH2 unit as called…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.