Aromatic Compounds: Chemical Compounds - 2118 Words.
Benzene Essay. Benzene, C(6)H(6), is a clear, colorless, flammable liquid that is insoluble in water.Its boiling point is 80 degrees C (176 degrees F). In the past benzene was obtained from the distillation of coal in the absence of air. Today most benzene is made syntheticallyfrom petroleum products.
The Aromatic term was purposed by August Wilhelm Hofmann in 1855 and later August Kekule, J. J. Thomson and Sir Robert Robinson played an important role in the explanation of the structure and bonding of aromatic compounds. (tutorvista.com) The six carbon benzene is connected in a ring.
Structure of Benzene. The structural representation of benzene is as shown in the figure below. The chemical formula for benzene is C 6 H 6, i.e it has 6 hydrogen- H atoms and six-carbon atoms and has an average mass of about 78.112.The structure has a six-carbon ring which is represented by a hexagon and it includes 3-double bonds.
The structure with three double bonds was proposed by Kekule as an attempt to explain how a molecule whose molecular formula was C 6 H 6 could be built out of carbons which make four bonds. The ring and the three double bonds fit the molecular formula, but the structure doesn't explain the chemical behavior of benzene at all well.
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The following paper discusses Friedrich Kekule’s interest in chemistry and examines how he came to be the originator of the structure theory for his study on chemical bonds. However this paper also examines how Kekule’s formula for the structure of benzene was wrong.
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Benzene is classified as one of the countless aromatic molecules, and this is just a plain benzene molecule. A different type of aromatic molecule will consist of different molecular structures, while the difference in their arrangement will give different properties. With regards to our lab, the aromatic samples hold a single distinct discrepancy.
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Structures A and B are known as resonating or canonical structures of benzene. The actual structure of benzene is different from both A and B, and cannot be represented by conventional formulae. The actual structure of benzene lies somewhere in between A and B and may be represented as C, referred to as resonance hybrid.
Essay text: Natural sources of benzene include volcanoes and forest fires. It is also a natural part of crude oil, gasoline and cigarette smoke. II. Why Do We Use or Make Benzene? Benzene ranks in the top 20 chemicals for production volume in the US. Benzene is used to make other chemicals which are used to make plastics, resins and nylon.
I want an essay about the STRUCTURE OF BENZENE Share with your friends. Share 0. In 19 th century, a German chemist, August Kekule was coming across with difficult a problem. He was attempting to figure out the atomic structure of benzene(C 6 H 6) molecule. He knew which specific atoms were in benzene, but he had no idea how these atoms could.
