The phase diagram of a mixture of A and B has to be drawn. The phase changes that occur on adding B to a fixed amount of A at (i) 48 ° C and (ii) 52.4 ° C have to be stated. Concept introduction: The azeotropic mixture is defined as a mixture of two or more liquids which evaporates without altering the composition of the mixture. The azeotropic mixture has a constant boiling point because of the same composition in liquid as well as vapor phase. The components of azeotropic mixture are not separated by distillation processes. The phase diagram represents the changes in the mixture on changing the conditions like temperature and pressure of the mixture.

Question

a) Write out 6 completely different reactions of acetophenone (reagent, product). b) Write out 3 preparations of 1-methylcyclohexanol, using a different starting material for each one. You may use preps where you just change the functional group, and/or preps where you construct the carbon chain. c) Write out 3 preparations of 2-ethoxybenzoic acid, a different starting material for each one. You may use preps where you just change the functional group, and/or preps where you construct the carbon chain.

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Chapter 5, Problem 5C.4BE

Interpretation Introduction

Interpretation: The phase diagram of a mixture of A and B has to be drawn. The phase changes that occur on adding B to a fixed amount of A at (i) 48°C and (ii) 52.4°C have to be stated.

Concept introduction: The azeotropic mixture is defined as a mixture of two or more liquids which evaporates without altering the composition of the mixture. The azeotropic mixture has a constant boiling point because of the same composition in liquid as well as vapor phase. The components of azeotropic mixture are not separated by distillation processes.

The phase diagram represents the changes in the mixture on changing the conditions like temperature and pressure of the mixture.

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