Chapter 14.1, Problem 1P

The boiling point of cis-but-2-ene is 3.7 °C, whereas that of trans-but-2-ene is 0.9 °C. Explain. Hint: Identify which intermolecular interaction is responsible for the difference in boiling points. cis-But-2-ene trans-But-2-ene Boiling point = 3.7 °C Boiling point = 0.9 °C

PBr3 (phosphorus tribromide) converts alcohols into alkyl bromides. Define ?

Compounds that can be visualized on a TLC plate by UV light must contain what? a carbon-carbon double bond an alcohol group a carbon-carbon single bond an array of conjugated double bonds

Draw the structure of all compounds that f t the following descriptions. a. Five constitutional isomers having the molecular formula C4H8. b. Nine constitutional isomers having the molecular formula C7H16. c. Twelve constitutional isomers having the molecular formula C6H12 and containing one ring

Explain why these compounds (1-propanol, ethylene glycol, and ethanethiol) experience different intermolecular forces based on their molecular structure.

Classify each alkene in the attached vitamins by the number of carbon substituents bonded to the double bond.

Give the correct IUPAC name of the following compound: ... A 7-cyclohexyl-3,5,5-trimethyl-4-pentylheptane B 1-cyclohexyl-4-sec-butyl-3,3-dimethylnonane 1-cyclohexyl-3,3,5-trimethyl-4-pentylheptane D 4-sec-butyl-1-cyclohexyl-3,3-dimethylnonane E none of these

Draw the structure of all compounds that fit the following descriptions. a. five constitutional isomers having the molecular formula C4H8 b. nine constitutional isomers having the molecular formula C7H16 c. twelve constitutional isomers having the molecular formula C6H12 and containing one ring

Explain why an alkyne often has a slightly higher boiling point than an alkene of similar molecular weight. For example, the bp of pent-1-yne is 39°C, and the bp of pent-1-ene is 30°C.