To identify the functional groups in Warfarin. Concept Introduction: A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups. A stereo centre is the centre where all the 4 groups attached to a carbon are different. A keto group stays in the equilibrium with its enol (−OH) form by resonance. NaBH 4 is a reducing agent it reduces ketone or aldehyde to an alcohol.

Question

(a 4 shows scanning electron microscope (SEM) images of extruded actions of packing bed for two capillary columns of different diameters, al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the same stationary phase, spherical particles with 1-um diameter. A) When the columns were prepared, the figure shows that the column with the larger diameter has more packing irregularities. Explain this observation. B) Predict what affect this should have on band broadening and discuss your prediction using the van Deemter terms. C) Does this figure support your explanations in application question 33? Explain why or why not and make any changes in your answers in light of this figure. Figure 4 SEM images of sections of packed columns for a) 750 and b) 30-um-i.d. capillary columns.³

Answer 1

Question

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

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(a 4 shows scanning electron microscope (SEM) images of extruded actions of packing bed for two capillary columns of different diameters, al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the same stationary phase, spherical particles with 1-um diameter. A) When the columns were prepared, the figure shows that the column with the larger diameter has more packing irregularities. Explain this observation. B) Predict what affect this should have on band broadening and discuss your prediction using the van Deemter terms. C) Does this figure support your explanations in application question 33? Explain why or why not and make any changes in your answers in light of this figure. Figure 4 SEM images of sections of packed columns for a) 750 and b) 30-um-i.d. capillary columns.³

fcrip = ↓ bandwidth Il temp 32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual components of the van Deemter equation and consequently, band broadening? Increase temperature Longer column Using a gas mobile phase instead of liquid Smaller particle stationary phase Multiple Paths Diffusion Mass Transfer

34. Figure 3 shows Van Deemter plots for a solute molecule using different column inner diameters (i.d.). A) Predict whether decreasing the column inner diameters increase or decrease bandwidth. B) Predict which van Deemter equation coefficient (A, B, or C) has the greatest effect on increasing or decreasing bandwidth as a function of i.d. and justify your answer. Figure 3 Van Deemter plots for hydroquinone using different column inner diameters (i.d. in μm). The data was obtained from liquid chromatography experiments using fused-silica capillary columns packed with 1.0-μm particles. 35 20 H(um) 큰 20 15 90 0+ 1500 100 75 550 01 02 594 05 μ(cm/sec) 30 15 10

Answer 2

Question

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

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Answer 3

Question

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Expert Solution & Answer

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Answer 4

Question

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Expert Solution & Answer

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Answer 5

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 6

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 7

Chapter 16, Problem 38P

Interpretation Introduction

Interpretation:

To identify the functional groups in Warfarin.

Concept Introduction:

A group of atoms which are responsible for the chemical reactions of a various compounds is known as functional groups.

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 8

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 9

Interpretation Introduction

Interpretation:

To draw the stereorepresentation of the r enantiomer as s enantiomer is more active than r enantiomer.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 10

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 11

Interpretation Introduction

Interpretation:

To draw the structural formula of keto form of Warfarin.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 12

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 13

Interpretation Introduction

Interpretation:

To draw the product formed by treating warfarin with NaBH₄_..

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 14

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 15

Interpretation Introduction

Interpretation:

The number of molecules of warfarin present in 4 mg tablet should be determined.

Concept Introduction:

A stereo centre is the centre where all the 4 groups attached to a carbon are different.

A keto group stays in the equilibrium with its enol (−OH) form by resonance.

NaBH₄ is a reducing agent it reduces ketone or aldehyde to an alcohol.

Answer 16

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Ch. 16.2 - Problem 17-1 Wrtie the IUPAC name for each...Ch. 16.2 - Prob. 16.2QC Ch. 16.2 - Prob. 16.3QC Ch. 16.4 - Prob. 16.4QC Ch. 16.4 - Prob. 16.5QC Ch. 16.4 - Problem 17-6 Show the reaction of benzaldehyde...Ch. 16.4 - Problem 17-7 Identify all hemiacetals and acetals...Ch. 16.5 - Prob. 16.8QC Ch. 16 - 17-9 Answer true or false. (a) The one aldehyde...Ch. 16 - Prob. 2P

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