Okay, so i dont have a specific question but i do need help understanding a specific topic. On the AP exam are you expected to graph titration/pH curves? I just dont understand them that well. I've looked at the ones in my chemistry book but i still cant seem to wrap my finger around it. And as far as Solubility Product goes I understand wut it means and how to calculate it but the Common Ion Effect is still eluding me. Any help would be greatly appreciated.