What is Kekule formula?
Definition of Kekulé formula : a structural formula for an organic compound that depicts each valence bond as a short line especially : the hexagonal ring formula for benzene.
What did August Kekule discover?
Kekule is regarded as one of the principal founders of modern organic chemistry, the chemistry of carbon-based compounds. In 1858 he showed that carbon can link with itself to form long chains. In 1865 he reported his discovery of the benzene ring as the basis for another major group of carbon molecules.
Who is Kekule and Couper?
In 1858 August Kekulé (1829–1896) and Archibald Scott Couper (1831–1892), two young men from different backgrounds, independently recognized that carbon atoms can link directly to one another to form carbon chains.
Why is ethene called ethylene?
Ethene is the formal IUPAC name for H2C=CH2, but it also goes by a common name: Ethylene. The name Ethylene is used because it is like an ethyl group (CH2CH3) but there is a double bond between the two carbon atoms in it.
How do you write the molecular formula?
Divide the molar mass of the compound by the empirical formula molar mass. The result should be a whole number or very close to a whole number. Multiply all the subscripts in the empirical formula by the whole number found in step 2. The result is the molecular formula.
How is Kekule found in benzene structure?
German chemist August Kekulé visualized the ring structure of benzene in 1865. Most organic chemical compounds contain loops of six carbon atoms called benzene rings. The nineteenth-century German chemist August Kekulé claimed to have pictured the ring structure of benzene after dreaming of a snake eating its own tail.
What is the history of benzene ring?
Benzene was first discovered by the English scientist Michael Faraday in 1825 in illuminating gas. In 1834 German chemist Eilhardt Mitscherlich heated benzoic acid with lime and produced benzene. In 1845 German chemist A.W. von Hofmann isolated benzene from coal tar.
What is the full name of Kekule?
Friedrich August Kekulé
August Kekule von Stradonitz, original name Friedrich August Kekulé, (born Sept. 7, 1829, Darmstadt, Hesse—died July 13, 1896, Bonn, Ger.), German chemist who established the foundation for the structural theory in organic chemistry.