The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified. Concept Introduction: > The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride ( PCl 3 ) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction. > A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction

Interpretation:

The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified.

Concept Introduction:
>
The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride (PCl3) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction.
>
A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10 Consider the following reaction: CH3OH(g) CO(g) + 2H2(g) (Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.) Part A Calculate AG for this reaction at 25 °C under the following conditions: PCH₂OH Pco PH2 0.815 atm = 0.140 atm 0.170 atm Express your answer in kilojoules to three significant figures. Ο ΑΣΦ AG = -150 Submit Previous Answers Request Answer □? kJ × Incorrect; Try Again; 2 attempts remaining Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship: AGrxn = AGrxn + RTInQ, AGxn+RTInQ, where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a is the reaction quotient. Provide Feedback Next >

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Answer 2

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Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction

Interpretation:

The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified.

Concept Introduction:
>
The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride (PCl3) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction.
>
A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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Answer 3

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Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction

Interpretation:

The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified.

Concept Introduction:
>
The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride (PCl3) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction.
>
A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction