I have two questions, this is a take home review in my university course

List the most important (strongest) intermolecular forces that must be overcome to 


a) remove water of hydration from NiSO4 7H2O

b) vaporize liquid CH3 OH



The second question is..


Consider what happens when solid CsI dissolves in liquid CH3OH


a) What type of attractive forces must be overcome in the liquid CH3OH?

b) What type of forces must be onvercome in the solid CsI?

c) What type of attractive forces are important when CsI dissolves in liquid CH3OH? 


Any help is greatly appriciated!