Honestly I'm not following. I'm struggling quite a bit in this class right now. I know cellulose has several polar alcohol groups bonded to carbons and then acetonitrile has a C-N bond and Ammonium acetate has two C-O bonds. I don't really know what to make of that though. C-O has the higher electronegativity out of that and C-N, but what about the CO/CN combo vs. C-OH? Or maybe I'm looking at this wrong altogether but I really have no idea what I'm supposed to be interpreting here. We have done nothing related to comparing polarity in class, only distinguishing between polar and non-polar.