1. S

    boiling points

    why do the boiling points of aldehydes and alcohols increase with the number of carbon atoms. i understand that the boiling points of alkanes increase with the number of carbon atoms through increasing van der vaal forces but with alcohols and aldehydes the intermolecular forces are hydrogen...
  2. J

    Boiling points of alcohols vs. alkanes

    Why do boiling points of alcohols increase more gradually with the increase in number of carbon atoms, while boiling points of alkanes increase more significantly for the same number of carbon atoms?
  3. J

    Which of these has higher boiling point?

    Which one has higher boiling point, phosphorus pentachloride or sulphur hexafluoride? So, phosphorus pentachloride is shaped as a trigonal bipyramid. It is not polar and the forces that act between molecules are London dispersion forces. Sulphur hexafluoride is shaped as octahedral, it is not...
  4. S

    boiling point of organic compounds

    Which one of these have the lowest boiling point? How can you tell which one has the lowest BP? all are isomers of C3h9n Propamine -------> CH3-CH2-CH2-NH2 : Prop-2-amine --------> CH3-CH-NH2-CH3 EthyMethylamine -------> CH3-NH-CH2-CH3 TriMethylamine -------> N(CH3)3 Is it propamine...
  5. S

    Why do these two compounds have different Boiling Points (BP's)?

    2-Methylpentane and 2-Pentanone have similar Molar Mass' but different BP's. In terms of the Intermolecular forces and surface area of the molecules explain why. I had since 2-Methylpentane is an Alkane consisting of only Carbon and Hydrogen it is non-polar (due to the distribution of electrons...
  6. S

    I'm stuck! Boiling point elevation problem

    I am at a loss for what to do with this problem: Determine the molality of a 100.0-mL water sample to which antifreeze (ethylene glycol, C2H6O2) has been added, if the boiling point of the solution rises to 104.5°C. From the molality, determine the number of grams of ethylene glycol added to...
  7. A

    What is the basic difference in Melting point and Boiling point ?

    I've tried searching it on the internet, but they said things, which I coudn't understand. Please tell me in layman language. Help!