Question

List the most i mportant (strongest) intermolecular force(s) that must be overcome to
(a) vaporize liquid CH 3 OH
(b) remove water of hydration from NiSO 4 • 7H 2 O
(c) melt solid KBr
so for a Isaid H bonding, for b I said ion-dipole (not sure about this one), and c I said ion-ion. Thoughts? Thanks

Answer 1

I would agree with your answers although I usually don't think of ion-ion (ionic bonds) as being an intermolecular force. Most discussions I've seen classify ionic bonds and covalent bonds as so-callee "main bonding types", then add intermolecular forces as dipole-dipole, ion-dipole, dispersion, etc.I see melting KBr crystals as breaking the crystal lattice bonds; however, ionic bonding is what forms that crystal lattice structure. I hope other tutors will weigh in on this.