1. The problem statement, all variables and given/known data There are two groups of bases, one that contains OH- (example : NaOH), and one that forces water to form OH- (example: NH3). Which of these are the stronger bases? Which are the weaker bases? Why? Ok so our class just started learning about acids and bases. I've read the pages on the text book regarding bases and i cant seem to find the answer or any kind of evidence. Could somebody give me a hint on this question please? is it related to conductivity?