April 23 – Polyprotic Acids and Bases, Polyprotic buffers April 30 – Polyprotic Acids and Bases, Acid/base titrations Grading: Your final grade for Chem 31 will be based 55 % on the lecture, and 45% ...

Sodium hydroxide is added to a cylinder of aluminum nitrate, precipitating out aluminum hydroxide. When additional base is added, the precipitate dissolves. The reactions can then be reversed with the ...