(a) Interpretation: The primary, secondary or tertiary amine in the given compound is to be classified. Concept introduction: Amines are nitrogen-containing organic compounds. The general formula of amines is R − NH 2 . Amines can be classified as primary amine, secondary amine, and tertiary amine. In Primary amines, one of the hydrogen atoms of ammonia is replaced by alkyl or aryl group. In secondary amines, two of the hydrogen atoms of ammonia are replaced by alkyl or aryl group. In tertiary amines, all hydrogen atoms of ammonia are replaced by alkyl or aryl group.

Question

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.…

Answer 1

Question

Chapter 3.2, Problem 6P

Interpretation Introduction

(a)

Interpretation: The primary, secondary or tertiary amine in the given compound is to be classified.

Concept introduction: Amines are nitrogen-containing organic compounds. The general formula of amines is R−NH2. Amines can be classified as primary amine, secondary amine, and tertiary amine. In Primary amines, one of the hydrogen atoms of ammonia is replaced by alkyl or aryl group.

In secondary amines, two of the hydrogen atoms of ammonia are replaced by alkyl or aryl group.

In tertiary amines, all hydrogen atoms of ammonia are replaced by alkyl or aryl group.

Interpretation Introduction

(b)

Interpretation: The primary, secondary or tertiary amine in the given compound is to be classified.

Concept introduction: Amines are nitrogen-containing organic compounds. The general formula of amines is R−NH2. Amines can be classified as primary amine, secondary amine, and tertiary amine. In Primary amines, one of the hydrogen atoms of ammonia is replaced by alkyl or aryl group.

In secondary amines, two of the hydrogen atoms of ammonia are replaced by alkyl or aryl group.

In tertiary amines, all hydrogen atoms of ammonia are replaced by alkyl or aryl group.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

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.…

Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. :0: :0 H. 0:0 :0: :6: S: :0: Select to Edit Arrows ::0 Select to Edit Arrows H :0: H :CI: Rotation Select to Edit Arrows H. < :0: :0: :0: S:

3:48 PM Fri Apr 4 K Problem 4 of 10 Submit Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Mg. :0: Select to Add Arrows :0: :Br: Mg :0: :0: Select to Add Arrows Mg. Br: :0: 0:0- Br -190 H 0:0 Select to Add Arrows Select to Add Arrows neutralizing workup H CH3