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Chemistry: Double Bonds, Carbon Nitrogen Triple Bonds

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Explain why only certain elements can form double bonds to themselves. Why can only C and N form triple bonds to themselves?

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This can be explained on the basis of valence bond theory and molecular orbital theory. The number of bonds formed by each element depends upon the number of outermost electrons ...

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The response discusses how certain elements can only form bonds to themselves.

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Aliphatic Hydrocarbon Questions (Chang)

24.11) Draw all possible structural isomers for the following alkane: C7H16

24.27) Write the structural formulas for the following organic compounds:
(a) 3-methylhexane
(b) 1,3,5, trichlorocyclohexane
(c) 2, 3 dimethylpentane
(d) 2 bromo 4 phenylpentane
(e) 3,4,5, trimethyloctane

24.31) Write structures for the following compounds:
(a) 1-bromo-3-methylbenzene
(b) 1-chloro-2-propylbenzene
(c) 1,2,4,5-tetramethylbenzene

24.34) Draw the Lewis structure for each of the following functional groups:
Carboxylic acid

24.41) Predict the product or products of each of the following reactions:
(a) CH3CH2OH + HCOOH-
(b) H---C====C---CH3 + H2--
(c) C2H5 H
C==C +HBr

24.43) Draw all the possible structural isomers for the molecule having the formula C7H7Cl. The molecule contains one benzene ring.

24.49) How many liters of air (78 percent N2, 22 percent O2 by volume) at 20 degrees Celsius and 1.00 atm are needed for the complete combustion of 1.0 L of octane, C8H18, a typical gasoline component that has a density of 0.70 g/mL?

24.53) Draw all the structural isomers of compounds with the formula C4H18Cl2. Indicate which isomers are chiral and give them systematic names.

24.59) Draw the structures for the following compounds:
(a) cyclopentane
(b) cis-2-butene
(c) 2-hexanol
(d) 1, 4-dibhromobenzene
(e) 2-butyne
24.67) Isopropanol is prepared by reacting propylene (CH3CHCH2) with sulfuric acid, followed by treatement with water.
(a) show the sequence of steps leading to the product. What is the role of sulfuric acid?
(b) Draw the structure of an alcohol that is an isomer of isopropanol.
(c)Is isopropanol a chiral molecule?
(d) What property of isopropanol makes it useful as a rubbing alcohol?

24.69) Under conditions of acid catalysis, alkenes react with water to form alcohols. As in the case with hydrogen halides, the addition reaction in the formation of alcohols is also governed by Markovnikov's rule. An alkene of approximate molar mass of 42 g reacts with water and sulfuric acid to produce a compound that reacts with acidic potassium dichromate solution to produce a ketone. Identify all the compounds in the preceeding steps.

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