Draw the structural isomers of C2H4BrCl and identify which of them has a chiral center.

The structural formula for the open-chain form of galactose is CH Н—ҫ—ОН Но—С—н НО—С—Н Н—ҫ—ОН CH-ОН (a) Is this molecule a sugar? (b) How many chiral carbons are present in the molecule? (C) Draw the structure of the six-member-ring form of this molecule.

1.Circle the organic the functional groups and name them.  2.Mark all chiral centers and determine the configuration of one of them.

Indicate the chiral centers in the molecules.

For example, alanine is a chiral amino acid that has two enantiomers: (+)-alanine and (-)-alanine. These two are optical isomers. NH2 NH2 4. One of the most important properties of chiral molecules in solution is their effect on plane- polarized light, this effect is called optical activity. -C H 2 COOH HOOC CH When an enantiomer rotates a plane-polarized light in the positive direction or clockwise, it is dextrorotary (+ or d), while for a negative direction or counterclockwise, it is levorotary (- or l) (+)-Alanine (-)-Alanine Alanine is a chiral amino acid that has two enantiomers: (+)-alanine and ()-alanine. These two are optical isomers.

Organic Chemistry HW: CANNOT BE HAND DRAWN 2,6-dimethyloct-2-ene Provide a detailed typed explanation of Stereoisomers show the expanded structure of your molecule. Calculate the maximum number of possible stereoisomers of your molecule using the following formula: Maximum number of possible stereoisomers = 2n (where n= the number of chiral carbons in your molecule). This calculation does not include E- or Z- isomers for any compounds containing double bonds Type or using a computer program "draw" the possible stereoisomers of the molecule. Note that E-, Z- isomers of each stereoisomer are also possible and would not be accounted for by the formula above; draw any E- or Z- isomers.

TRUE OR FALSE (a) A functional group is a group of atoms in an organic molecule that undergoes a predictable set of chemical reactions. (b) The functional group of an alcohol, an aldehyde, and a ketone have in common the fact that each contains a single oxygen atom. (c) A primary alcohol has one —OH group, a secondary alcohol has two —OH groups, and a tertiary alcohol has three —OH groups. (d) There are two alcohols with the molecular formula C3H8O. (e) There are three amines with the molecular formula C3H9N. (f) Aldehydes, ketones, carboxylic acids, and esters all contain a carbonyl group. (g) A compound with the molecular formula of C3H6O may be either an aldehyde, a ketone, or a carboxylic acid. (h) Bond angles about the carbonyl carbon of an aldehyde, a ketone, a carboxylic acid, and an ester are all approximately 109.5°. (i) The molecular formula of the smallest aldehyde is C3H6O, and that of the smallest ketone is also C3H6O. (j) The molecular formula of the smallest carboxylic…

Aspartame, an artificial sweetener used in Equal® and diet beverages, has the following structure. Identify the functional groups in Aspartame. II NH, O OH O 1= ester; I| = amide; III = amine O 1 = ester; I| = amine; III = amide O1= ether; I| = amide; III = amine O 1 = ether; I| = amine; III = amide O 1 = anhydride; Il = ketone; I|| = amine

What is the mathematical relationship between the number of chiral carbons and the number of optical isomers (stereoisomers) in a molecule?