Fischer projections for two D-aldoheptoses whose stereochemistry at C 3 , C 4 , C 5 and C 6 is the same as that of D-glucose at C 2 , C 3 , C 4 and C 5 are to be drawn. Concept introduction: When a new chiral center is created in an optically active monosaccharide molecule the arrangement of H and OH on the new chiral center can be either H at left and OH at right or H at right and OH at left. Hence two isomers can be written. To draw: Fischer projections for two D-aldoheptoses whose stereochemistry at C 3 , C 4 , C 5 and C 6 is the same as that of D-glucose at C 2 , C 3 , C 4 and C 5 .

Question

Laser. Indicate the relationship between metastable state and stimulated emission.

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 25.SE, Problem 43AP

Interpretation Introduction

Interpretation:

Fischer projections for two D-aldoheptoses whose stereochemistry at C₃, C₄, C₅ and C₆ is the same as that of D-glucose at C₂, C₃, C₄ and C₅ are to be drawn.

Concept introduction:

When a new chiral center is created in an optically active monosaccharide molecule the arrangement of H and OH on the new chiral center can be either H at left and OH at right or H at right and OH at left. Hence two isomers can be written.

To draw:

Fischer projections for two D-aldoheptoses whose stereochemistry at C₃, C₄, C₅ and C₆ is the same as that of D-glucose at C₂, C₃, C₄ and C₅.

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Laser. Indicate the relationship between metastable state and stimulated emission.

The table includes macrostates characterized by 4 energy levels (&) that are equally spaced but with different degrees of occupation. a) Calculate the energy of all the macrostates (in joules). See if they all have the same energy and number of particles. b) Calculate the macrostate that is most likely to exist. For this macrostate, show that the population of the levels is consistent with the Boltzmann distribution. macrostate 1 macrostate 2 macrostate 3 ε/k (K) Populations Populations Populations 300 5 3 4 200 7 9 8 100 15 17 16 0 33 31 32 DATO: k = 1,38×10-23 J K-1

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Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 25.SE, Problem 43AP

Interpretation Introduction

Interpretation:

Fischer projections for two D-aldoheptoses whose stereochemistry at C₃, C₄, C₅ and C₆ is the same as that of D-glucose at C₂, C₃, C₄ and C₅ are to be drawn.

Concept introduction:

When a new chiral center is created in an optically active monosaccharide molecule the arrangement of H and OH on the new chiral center can be either H at left and OH at right or H at right and OH at left. Hence two isomers can be written.

To draw:

Fischer projections for two D-aldoheptoses whose stereochemistry at C₃, C₄, C₅ and C₆ is the same as that of D-glucose at C₂, C₃, C₄ and C₅.

Expert Solution & Answer

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Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 25.SE, Problem 43AP

Interpretation Introduction

Interpretation:

Fischer projections for two D-aldoheptoses whose stereochemistry at C₃, C₄, C₅ and C₆ is the same as that of D-glucose at C₂, C₃, C₄ and C₅ are to be drawn.

Concept introduction:

When a new chiral center is created in an optically active monosaccharide molecule the arrangement of H and OH on the new chiral center can be either H at left and OH at right or H at right and OH at left. Hence two isomers can be written.

To draw:

Fischer projections for two D-aldoheptoses whose stereochemistry at C₃, C₄, C₅ and C₆ is the same as that of D-glucose at C₂, C₃, C₄ and C₅.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 25.SE, Problem 43AP

Interpretation Introduction