Why is the boiling point of 2-bromobutane lower than that of 1-bromobutane. Your answer should go beyond the observation of structural differences.
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Why is the boiling point of 2-bromobutane lower than that of 1-bromobutane. Your answer should go beyond the observation of structural differences.
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- Account for the fact that 2-phenylpropanal is formed rather than its constitutional isomer, 1-phenyl-1-propanone.Choose the best explanation for why these compounds are all less than fifteen carbons. A) Aldehydes with longer alkyl chains become increasingly nonpolar and the LDF are stronger than hydrogen bonding with ethanol. B) Ethanol molecules will hydrogen bond with the oxygen of the aldehydes. However, longer alkyl chains interrupt the ability of the aldehyde to hydrogen bond with ethanol which decreases the solubility. C) Ethanol molecules will form strong LDF interactions between the alkyl chains of the aldehydes and the alkyl groups of ethanol. The strong attractions cause the aldehydes to precipitate out of solution. D) When aldehydes chain length increases, the aldehydes have stronger intermolecular force with the small ethanol solvent molecules than the ethanol-ethanol intermolecular force.1. Draw structural formulas for 1-bromobutane, 2-bromobutane, 2-bromo-2- methylpropane, 1-bromo-2-methylpropane, and 1-bromo-2,2-dimethylpropane. Classify each compound as a primary halide, secondary halide, or tertiary halide. 2. Draw structural formulas for acetone and ethanol. Which solvent is more polar? Explain. 3. A student wishes to determine the rate law for the reaction A +B → C. The student doubles the concentration of A while holding the concentration of B constant and finds that the rate of the reaction doubles. The student then doubles the concentration of B while holding the concentration of A constant and finds that the rate is unchanged. Write the rate law for this reaction. (Refer to a general chemistry text, if necessary.) Experimental Procedure S a
- When bromine is added to two beakers, one containing phenyl isopropyl ether and the other containing cyclohexene, the bromine color in both beakers disappears. What observation could you make while performing this test that would allow you to distinguish the alkene from the aryl ether?1. a secondary alkyl halide with molecular formula C4H9l 2. trans-1,2-cyclopentanediol 3. tert-butyl phenyl ether 4. an ether with molecular formula C3H8O 5. p-aminophenol2. Draw structures for the following systems. If more than one isomer is possible, draw strcutures for all the possible isomers. Benzene ring with a methyl group and a nitro group (Draw all possible isomers, and name them) Benzene ring connected to a heptane chain (Draw all possible isomers, and name them) 2-benzyl-3- methylbutan-1-ol
- Write structural formulas for all aldehydes with the molecular formula C6H12O and give each its IUPAC name. Which of these aldehydes are chiralGive an example of an azeotrope and give one method/technique that people have used to separate an azeotropic mixture. a) Are cyclohexane and toluene an azeotropic mixture? Why or why not?Give a brief answer to explain why acetic acid has a much higher BP (118 C) than 1- propanol (BP = 97 C) even though they both have the same size (molecular weight = 60) and they both form Hydrogen bonds.
- 1. Write in the correct reagents to accomplish these reactions. a) 2-methyl-2-pentanol b) CH3CH2CH₂OH → 2-chloro-2-methylpentane CH3CH₂CHWrite structural formulas for all ketones with the molecular formula C6H12O and give each its IUPAC name. Which of these ketones are chiral?When 2-chloropropane treated with NaOH and 1-chloropropane treated with NaOH separately produce two different functional groups. Provide both reactions and explain the two different functional groups produced.