Yes. Hello. I am new. THis is a nice forum. Very nice website. Wish I would have found it sooner. Okay, my question. Without having to rely on memorizing solubility rules (specifically for organic compounds), is there a intuitive way to determine what will dissolve in what based on the relative pKa's of solvent/solute? eg. a compound dissolves in H2SO4(pKa~-4), but not in NaOH(~40) or H20(~15). The compound is an ester (~25). Help? Or shall I have a nice warm bath with some MEMORIZING bubbles...!? ....mesmerizing...memorizing. Ahh...7 am and I still got it.