The reason for the fact that d -mannose can exist as dextrorotatory as well as levorotatory is to be explained. Concept introduction: By convention, the terms dextrorotation and levorotation (or laevorotation) represent the movement of plane polarized light clockwise or anticlockwise, respectively, for a compound as seen by the observer whom the light is approaching. The compound exhibiting dextrorotation is said to be dextrorotatory and that exhibiting levorotation is said to be levorotatory . The dextrorotation and levorotation can be quantized by measuring the degree of specific rotation of the compound, α , which can be given as; [ α ] = α c × l , where α is the observed rotation (in degrees) c is the concentration of the solution of an enatiomer (in g/mL) and l is the length of the polarimeter tube (in decimeters) The value of dextrorotation is positive (+) and that of levorotation is negative (-).

Question

Want to see the full answer?

Answer 1

Question

Chapter 22, Problem 23P

Interpretation Introduction

Interpretation:

The reason for the fact that d-mannose can exist as dextrorotatory as well as levorotatory is to be explained.

Concept introduction:

By convention, the terms dextrorotation and levorotation (or laevorotation) represent the movement of plane polarized light clockwise or anticlockwise, respectively, for a compound as seen by the observer whom the light is approaching. The compound exhibiting dextrorotation is said to be dextrorotatory and that exhibiting levorotation is said to be levorotatory.

The dextrorotation and levorotation can be quantized by measuring the degree of specific rotation of the compound, α, which can be given as;

[α]=αc×l, where α is the observed rotation (in degrees) c is the concentration of the solution of an enatiomer (in g/mL) and l is the length of the polarimeter tube (in decimeters)

The value of dextrorotation is positive (+) and that of levorotation is negative (-).

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

option choice: Isoleucine Histidine Threonine Alanine Lysine Aspartate Tryptophan Tyrosine Leucine Arginine Cysteine Asparagine Valine Glutamine Glycine Methionine Serine Proline Phenylalanine Glutamate

sketch the nature of the metal-alkylidene bonding interactions.

Part C The perspective formula of isoleucine, an amino acid, is provided below. HOOC H₂NIC H 川 CH3 CH,CH3 Draw the Newman projection in staggered conformation for isoleucine by viewing the molecule along the C-2-C-3 bond. 1. Edit the Newman projection on the canvas. 2. Replace the appropriate hydrogens with the appropriate -CH3 or other groups. 3. If you need to start over, Undo or choose a Newman projection from the Templates toolbar (bottom). Important: Never delete the hydrogen atoms or bonds directly attached to the template, and do not move them by dragging or dropping them. That will break the projections structures. Only replace them! ▸ View Available Hint(s) 0 2 H± 3D EXP. L ד י CONT. 2 H 0 N о