Haworth and conformational formulae of the β -cyclic hemiacetal of D-mannose are to be completed. The nature of the hemiacetal on the basis of the given reactions and observations is to be determined. Concept introduction: The Haworth representation of the chemical formulae of biomolecules demonstrates the cyclic form of monosaccharides with a simple three-dimensional perspective. It represents the chirality center of the open-chain form through the cyclic forms. Carbon is an implicit type of atom. Carbons are numbered from 1 to number 6, where the first carbon is called the anomeric carbon. Identification of carbohydrates is carried out by the anomeric carbons. If the hydroxyl group is attached to the anomeric carbon, the carbohydrate is reducible, which positively tested for Benedict and Tollens’s test. The optical activity of a carbohydrate is dependent on its ability to turn the plane of polarized light incident on the sample. When monosaccharides react with dilute nitric acid, the aldehydes and alcohols are oxidized into carboxylic acids, producing dicarboxylic acids known as aldonic acids. Aldehydes and ketones can be reduced to primary and secondary alcohols, respectively, with the help of sodium borohydride.

Question

For each scenario below, select the color of the solution using the indicator thymol blue during the titration. When you first add indicator to your Na2CO3solution, the solution is basic (pH ~10), and the color is ["", "", "", "", ""] . At the equivalence point for the titration, the moles of added HCl are equal to the moles of Na2CO3. One drop (or less!) past this is called the endpoint. The added HCl begins to titrate the thymol blue indicator itself. At the endpoint, the indicator color is ["", "", "", "", ""] . When you weren't paying attention and added too much HCl (~12 mL extra), the color is ["", "", "", "", ""] . When you really weren't paying attention and reached the second equivalence point of Na2CO3, the color is

Answer 1

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 22, Problem 6Q

Interpretation Introduction

Interpretation:

Haworth and conformational formulae of the β -cyclic hemiacetal of D-mannose are to be completed. The nature of the hemiacetal on the basis of the given reactions and observations is to be determined.

Concept introduction:

The Haworth representation of the chemical formulae of biomolecules demonstrates the cyclic form of monosaccharides with a simple three-dimensional perspective. It represents the chirality center of the open-chain form through the cyclic forms. Carbon is an implicit type of atom. Carbons are numbered from 1 to number 6, where the first carbon is called the anomeric carbon.

Identification of carbohydrates is carried out by the anomeric carbons. If the hydroxyl group is attached to the anomeric carbon, the carbohydrate is reducible, which positively tested for Benedict and Tollens’s test.

The optical activity of a carbohydrate is dependent on its ability to turn the plane of polarized light incident on the sample.

When monosaccharides react with dilute nitric acid, the aldehydes and alcohols are oxidized into carboxylic acids, producing dicarboxylic acids known as aldonic acids.

Aldehydes and ketones can be reduced to primary and secondary alcohols, respectively, with the help of sodium borohydride.

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For each scenario below, select the color of the solution using the indicator thymol blue during the titration. When you first add indicator to your Na2CO3solution, the solution is basic (pH ~10), and the color is ["", "", "", "", ""] . At the equivalence point for the titration, the moles of added HCl are equal to the moles of Na2CO3. One drop (or less!) past this is called the endpoint. The added HCl begins to titrate the thymol blue indicator itself. At the endpoint, the indicator color is ["", "", "", "", ""] . When you weren't paying attention and added too much HCl (~12 mL extra), the color is ["", "", "", "", ""] . When you really weren't paying attention and reached the second equivalence point of Na2CO3, the color is

The following reaction is run in which the initial conditions include only methane (CH4) at a concentration of0.115 M. Once equilibrium was established, the concentration of acetylene (C2H2) was measured to be 0.035M. What is the value of the equilibrium constant, K?2 CH4 (g) ⇋ C2H2 (g) + 3 H2 (g)

Calculate the equilibrium concentration of carbon dioxide for the following reaction:2 COF2 (g) ⇋ CF4 (g) + CO2 (g) Kc = 2.00 at 10.00 °C. at equilibrium [COF2] = 0.255M; [CF4] = 0.118M

Answer 2

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 22, Problem 6Q

Interpretation Introduction

Interpretation:

Haworth and conformational formulae of the β -cyclic hemiacetal of D-mannose are to be completed. The nature of the hemiacetal on the basis of the given reactions and observations is to be determined.

Concept introduction:

The Haworth representation of the chemical formulae of biomolecules demonstrates the cyclic form of monosaccharides with a simple three-dimensional perspective. It represents the chirality center of the open-chain form through the cyclic forms. Carbon is an implicit type of atom. Carbons are numbered from 1 to number 6, where the first carbon is called the anomeric carbon.

Identification of carbohydrates is carried out by the anomeric carbons. If the hydroxyl group is attached to the anomeric carbon, the carbohydrate is reducible, which positively tested for Benedict and Tollens’s test.

The optical activity of a carbohydrate is dependent on its ability to turn the plane of polarized light incident on the sample.

When monosaccharides react with dilute nitric acid, the aldehydes and alcohols are oxidized into carboxylic acids, producing dicarboxylic acids known as aldonic acids.

Aldehydes and ketones can be reduced to primary and secondary alcohols, respectively, with the help of sodium borohydride.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 3

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 22, Problem 6Q

Interpretation Introduction

Interpretation:

Haworth and conformational formulae of the β -cyclic hemiacetal of D-mannose are to be completed. The nature of the hemiacetal on the basis of the given reactions and observations is to be determined.

Concept introduction:

The Haworth representation of the chemical formulae of biomolecules demonstrates the cyclic form of monosaccharides with a simple three-dimensional perspective. It represents the chirality center of the open-chain form through the cyclic forms. Carbon is an implicit type of atom. Carbons are numbered from 1 to number 6, where the first carbon is called the anomeric carbon.

Identification of carbohydrates is carried out by the anomeric carbons. If the hydroxyl group is attached to the anomeric carbon, the carbohydrate is reducible, which positively tested for Benedict and Tollens’s test.

The optical activity of a carbohydrate is dependent on its ability to turn the plane of polarized light incident on the sample.

When monosaccharides react with dilute nitric acid, the aldehydes and alcohols are oxidized into carboxylic acids, producing dicarboxylic acids known as aldonic acids.

Aldehydes and ketones can be reduced to primary and secondary alcohols, respectively, with the help of sodium borohydride.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook 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 22, Problem 6Q

Interpretation Introduction