The monomer that can be used as a starting material to prepare a copolymer of styrene and acrylonitrile is to be determined. Concept introduction: The copolymers are obtained by the polymerization of two different monomers. The anionic polymerization occurs through the formation of carbanion. The monomers having electron withdrawing group at vinylic position are susceptible to anionic polymerization. The initiation of anionic polymerization involves the addition of base to the monomer and formation of a carbanion. The electron withdrawing effect of the cyanide group is higher in magnitude than that of the benzene ring. Hence, it stabilizes the carbanion better.

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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 28, Problem 25P

Interpretation Introduction

Interpretation:

The monomer that can be used as a starting material to prepare a copolymer of styrene and acrylonitrile is to be determined.

Concept introduction:

The copolymers are obtained by the polymerization of two different monomers.

The anionic polymerization occurs through the formation of carbanion.

The monomers having electron withdrawing group at vinylic position are susceptible to anionic polymerization.

The initiation of anionic polymerization involves the addition of base to the monomer and formation of a carbanion.

The electron withdrawing effect of the cyanide group is higher in magnitude than that of the benzene ring. Hence, it stabilizes the carbanion better.

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A small artisanal cheesemaker is testing the acidity of their milk before it coagulates. During fermentation, bacteria produce lactic acid (K₁ = 1.4 x 104), a weak acid that helps to curdle the milk and develop flavor. The cheesemaker has measured that the developing mixture contains lactic acid at an initial concentration of 0.025 M. Your task is to calculate the pH of this mixture and determine whether it meets the required acidity for proper cheese development. To achieve the best flavor, texture and reduce/control microbial growth, the pH range needs to be between pH 4.6 and 5.0. Assumptions: Lactic acid is a monoprotic acid H H :0:0: H-C-C H :0: O-H Figure 1: Lewis Structure for Lactic Acid For simplicity, you can use the generic formula HA to represent the acid You can assume lactic acid dissociation is in water as milk is mostly water. Temperature is 25°C 1. Write the K, expression for the dissociation of lactic acid in the space provided. Do not forget to include state symbols.…

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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 28, Problem 25P

Interpretation Introduction

Interpretation:

The monomer that can be used as a starting material to prepare a copolymer of styrene and acrylonitrile is to be determined.

Concept introduction:

The copolymers are obtained by the polymerization of two different monomers.

The anionic polymerization occurs through the formation of carbanion.

The monomers having electron withdrawing group at vinylic position are susceptible to anionic polymerization.

The initiation of anionic polymerization involves the addition of base to the monomer and formation of a carbanion.

The electron withdrawing effect of the cyanide group is higher in magnitude than that of the benzene ring. Hence, it stabilizes the carbanion better.

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Answer 3

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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 28, Problem 25P

Interpretation Introduction

Interpretation:

The monomer that can be used as a starting material to prepare a copolymer of styrene and acrylonitrile is to be determined.

Concept introduction:

The copolymers are obtained by the polymerization of two different monomers.

The anionic polymerization occurs through the formation of carbanion.

The monomers having electron withdrawing group at vinylic position are susceptible to anionic polymerization.

The initiation of anionic polymerization involves the addition of base to the monomer and formation of a carbanion.

The electron withdrawing effect of the cyanide group is higher in magnitude than that of the benzene ring. Hence, it stabilizes the carbanion better.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

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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 28, Problem 25P

Interpretation Introduction