The structure of repeating monomer unit in the polyester formed by the condensation of oxalic acid and 1, 3 - propanediol is to be stated. Concept introduction: The reaction between acid and alcohol gives an ester as a major product. The ester group is derived by a carboxylic acid group in which the acidic hydrogen is replaced by an alkyl group. Esters are identified for their characteristic sweet smells.

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 15, Problem 15.42E

Interpretation Introduction

Interpretation:

The structure of repeating monomer unit in the polyester formed by the condensation of oxalic acid and 1, 3-propanediol is to be stated.

Concept introduction:

The reaction between acid and alcohol gives an ester as a major product. The ester group is derived by a carboxylic acid group in which the acidic hydrogen is replaced by an alkyl group. Esters are identified for their characteristic sweet smells.

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Part II. Given two isomers: 2-methylpentane (A) and 2,2-dimethyl butane (B) answer the following: (a) match structures of isomers given their mass spectra below (spectra A and spectra B) (b) Draw the fragments given the following prominent peaks from each spectrum: Spectra A m/2 =43 and 1/2-57 spectra B m/2 = 43 (c) why is 1/2=57 peak in spectrum A more intense compared to the same peak in spectrum B. Relative abundance Relative abundance 100 A 50 29 29 0 10 -0 -0 100 B 50 720 30 41 43 57 71 4-0 40 50 60 70 m/z 43 57 8-0 m/z = 86 M 90 100 71 m/z = 86 M -O 0 10 20 30 40 50 60 70 80 -88 m/z 90 100

Part IV. C6H5 CH2CH2OH is an aromatic compound which was subjected to Electron Ionization - mass spectrometry (El-MS) analysis. Prominent m/2 values: m/2 = 104 and m/2 = 9) was obtained. Draw the structures of these fragments.

For each reaction shown below follow the curved arrows to complete each equationby showing the structure of the products. Identify the acid, the base, the conjugated acid andconjugated base. Consutl the pKa table and choose the direciton theequilibrium goes. However show the curved arrows. Please explain if possible.

Answer 2

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 15, Problem 15.42E

Interpretation Introduction

Interpretation:

The structure of repeating monomer unit in the polyester formed by the condensation of oxalic acid and 1, 3-propanediol is to be stated.

Concept introduction:

The reaction between acid and alcohol gives an ester as a major product. The ester group is derived by a carboxylic acid group in which the acidic hydrogen is replaced by an alkyl group. Esters are identified for their characteristic sweet smells.

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Answer 3

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 15, Problem 15.42E

Interpretation Introduction

Interpretation:

The structure of repeating monomer unit in the polyester formed by the condensation of oxalic acid and 1, 3-propanediol is to be stated.

Concept introduction:

The reaction between acid and alcohol gives an ester as a major product. The ester group is derived by a carboxylic acid group in which the acidic hydrogen is replaced by an alkyl group. Esters are identified for their characteristic sweet smells.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 15, Problem 15.42E

Interpretation Introduction