The D-ketohexoses that have S configuration at C3 are to be identified. Concept introduction: The stereochemistry of stereogenic center is S and R if the circle around it rotates in anticlockwise and anticlockwise direction, respectively. The inversion of configuration takes place when the lowest priority group is present on horizontal line in Fischer projection formula.

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 28, Problem 28.11P

Interpretation Introduction

Interpretation: The D-ketohexoses that have S configuration at C3 are to be identified.

Concept introduction: The stereochemistry of stereogenic center is S and R if the circle around it rotates in anticlockwise and anticlockwise direction, respectively. The inversion of configuration takes place when the lowest priority group is present on horizontal line in Fischer projection formula.

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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

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 28, Problem 28.11P

Interpretation Introduction

Interpretation: The D-ketohexoses that have S configuration at C3 are to be identified.

Concept introduction: The stereochemistry of stereogenic center is S and R if the circle around it rotates in anticlockwise and anticlockwise direction, respectively. The inversion of configuration takes place when the lowest priority group is present on horizontal line in Fischer projection formula.

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Answer 3

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 28, Problem 28.11P

Interpretation Introduction

Interpretation: The D-ketohexoses that have S configuration at C3 are to be identified.

Concept introduction: The stereochemistry of stereogenic center is S and R if the circle around it rotates in anticlockwise and anticlockwise direction, respectively. The inversion of configuration takes place when the lowest priority group is present on horizontal line in Fischer projection formula.

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Check out a sample textbook solution

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Answer 4

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 28, Problem 28.11P

Interpretation Introduction