Rank the following compounds in acending order of melting point (and explain your reasoning): CH3CH2CH2NH2, CH3CH2CH3, CH3CH2CH2OH

CH3CH2CH3 , CH3CH2CH2NH2 , CH3CH2CH2OHThe only major intermolecular force that takes place in propane are the van deer waal forces made up by dipole to dipole interactions. The other two compounds have van der waal forces, but on top of that they engage in hydrgen bonding (thanks to the hydroxy and amine groups). This additional force strenghtens the intermolecular forces and thus increases the melting point of the compound.Propanol has a higher mp than proplamine as oxygen has two lone pairs of electrons, where as nitrogen has only one. This means that oxygen can form two hydrogen bonds where as nitrogen can only form one. Propanol therefore has more hydrogen bonds and therefore has stronger intermolecular forces.

SN
Answered by Sean N. Chemistry tutor

2331 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Calculate the mass of the following substance: a) 2.5 x 10^23 molecules of N2


Explain, in terms of atomic energy levels, how an atomic emission spectrum is formed


What is a radical?


4.00 g metal carbonate, MCO3 reacts with acid to liberate a gas that occupies 0.5878 dm3 at 25˚C and 2.0 x 105 Pa. Identify the group 2 metal, M. Info: R = 8.314 J K-1 mol-1


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning