Tuesday, March 22, 2011
Tues-Day 2
Physics- took part II of our unit exam on Waves 1.
AP Chem - we examined the proper selection of conjugates to make a given volume of a buffer solution of a particular pH. We saw that the pKa of the selected acid MUST be within 1.0 unit of the desired pH and the pKb of the base must be within 1.0 unit of the desired pOH.
We then discussed how to properly physically prepare the buffer, selecting the proper equipment and order of mixing.
We then looked at some of the 4 permutations of acid base titrations, and the characteristic pH vs. titrant volume curves that result.
There are several major points on each curve that tell you the type and concentrations of the acid and base used.# posted by C @ 1:16 PM 
