The presence of asymmetric centers in the given compounds has to be checked. Concept introduction: Stereoisomers are isomers which have different spatial arrangement in spite of same bond connectivity. Stereoisomers are due to the presence of stereo center. Asymmetric center is a stereo center which arises to hydrocarbons if the carbon is bonded to four different groups.

Question

Complete the following table. The only density needed is already given. Show your calculations in a neat and easy-to-follow manner in the space below the table. All units should be included and significant figures should be given close attention. Be sure to notice that the amount of material should be in millimoles rather than moles, and the theoretical mass of the product should in milligrams rather than grams. LOCH 3 + H2SO4 HNO 3 O=C-OCH 3 NO2 x H₂O F.W. 4.0 mL 1.3 M amount 0.50 mL in H2SO4 mg Theoretical Theoretical mmoles density 1.09

Answer 1

Question

Chapter 4, Problem 103P

(a)

Interpretation Introduction

Interpretation:

The presence of asymmetric centers in the given compounds has to be checked.

Concept introduction:

Stereoisomers are isomers which have different spatial arrangement in spite of same bond connectivity. Stereoisomers are due to the presence of stereo center.

Asymmetric center is a stereo center which arises to hydrocarbons if the carbon is bonded to four different groups.

(b)

Interpretation Introduction

Interpretation:

The chirality of the given compounds has to be checked.

Concept introduction:

Optical activity (chirality) of a molecule is the interaction between molecule and plane-polarized light.

Molecule having asymmetric center shows optical activity except mesocompounds.

If a compound having non-superimposable mirror image, then the compound is chiral.

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