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[1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.
A Lewis base is also a Brønsted–Lowry base, but a Lewis acid does not need to be a Brønsted–Lowry acid. The classification into hard and soft acids and bases ( HSAB theory ) followed in 1963. The strength of Lewis acid-base interactions, as measured by the standard enthalpy of formation of an adduct can be predicted by the Drago–Wayland ...
Ethyl acetate (systematically ethyl ethanoate, commonly abbreviated EtOAc, ETAC or EA) is the organic compound with the formula CH 3 CO 2 CH 2 CH 3, simplified to C 4 H 8 O 2.This flammable, colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, and the decaffeination process of tea and coffee.
It is also miscible in common organic solvents, such as acetone, ethanol, and diethyl ether. Laboratory samples of triethylamine can be purified by distilling from calcium hydride. [11] In alkane solvents triethylamine is a Lewis base that forms adducts with a variety of Lewis acids, such as I 2 and phenols. Owing to its steric bulk, it forms ...
This BAC roughly corresponds to drinking one gram of pure ethanol. [86] Ethanol is rapidly absorbed through cut or damaged skin, with reports of ethanol intoxication and fatal poisoning. [87] The timing of peak blood concentration varies depends on the type of alcoholic drink: [88] Vodka tonic: 36 ± 10 minutes after consumption; Wine: 54 ± 14 ...
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It is classified as an ester that is formed from 1-octanol (octyl alcohol) and acetic acid. It is found in oranges, grapefruits, and other citrus products. [10] Octyl acetate can be synthesized by the Fischer esterification of 1-octanol and acetic acid: CH 3 (CH 2) 7 OH + CH 3 CO 2 H → CH 3 (CH 2) 7 O 2 CCH 3 + H 2 O
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