00:01
Hello students, this question is based on the separation of benzoic acid and naphthalene using liquid -liquid extraction.
00:08
The first part of the question we have to draw the structure of the benzoic acid and the naphthalene.
00:14
So first of all we are going to draw the structure of the benzoic acid.
00:18
The benzoic acid is a carboxylic acid with a benzene group.
00:22
So this is the structure of the benzoic acid and next we are going to draw the structure of the naphthalene.
00:31
So it is a biphenyl compound that it consists of two benzene rings that are attached to each other.
00:38
So here the double bonds will be placed alternatively.
00:44
So this is the structure of the naphthalene and coming to the second part of the question.
00:49
In the second part of the question we have to give a equation that illustrates the separation of the benzoic acid from benzoic acid -naphthalene mixture.
01:00
We know that benzoic acid undergo reaction with the sodium hydroxide naoh and forms a sodium benzoate that can be written as follows coona plus water.
01:20
So this is soluble in water while naphthalene is insoluble in water.
01:25
Based on this we are going to separate the benzoic acid from benzoic acid and naphthalene mixture...