General Chemistry Problem Help1

this is number 52 in chapter 11 um it's looking at recognizing uh different forces uh of Attraction um and again in order to recognize a force of attraction we need to be able to draw the molecule in three dimensions and so um with 52 we just want to determine what kinds of intermolecular forces are present in in each of these uh elements or compounds and so for part A we're looking at ph3 and ph3 would have uh a tetrahedral electronic structure and as a result it has a dipole a molecular dipole and so since it has a molecular dipole this is known as dipole dipole of forces of attraction with Part B we're looking at hbr um hbr is relatively simple structure just simple uh Bond and so hbr is an example of an acid and acids do have hydrogen bonding capabilities and so this guy actually has two different types of forces that we should be concerned about dipole dipole um but this guy can also um interact in a hydrogen bonding uh format part C is looking at ch3 o and we can draw that structure in in a a three-dimensional perspective but remember we want to recognize certain groups so since this is a a polar molecule and does have a a molecular dipole but the fact that we have this o group signify that we're talking about hydrogen bonding as its strongest force of attraction and then lastly for Part D we look at iodine iodine is very similar to hbr we just have that single Bond um this case between the two iodines um this would be an example of a molecule not having a molecular dipole and so since it is lacking a molecular dipole then we have dispersion forces now as the strongest force of attraction so we need to be able to draw these molecules and then determine whether they have a molecular dipole or not if they have a molecular dipole then they're talking about dipole dipole forces of attraction if they do not have a molecular dipole then we're talking about dispersion forces of attraction and if we recognize that there's a o um remember that there are other groups such as NH and CO2 um then that is a molecule that has hydrogen bonding as its strongest force of attraction that is number 52