Tuesday, March 06, 2007
Tuesday, Day 1
AP: we began the ultra-important common ion effect/ buffer solution problems; we showed what occurs via Le Chatelier when a salt with a common ion is added to the weak acid in solution; the ionization of the weak acid is suppressed and equilibrium shifts towards the un-ionized acid.
We then derived the acidic and basic forms of the Henderson-Hasselbalch equation.
We will be learning about buffers and then 6-part titration problems in which buffer solutions necessarily form during the titration. Those problems will seem long at first but, with practice, will become quite mechanical.
Regents: we did the long haul and covered some ground today; we finished molality/colligative properties problems. You must know how to name any salt or molecule and know that molecules (except acids) do not dissociate upon dissolving; you must know the number of particles that a given formula unit of a salt dissociates into.
We learned factors that influence the solubility of a given solute in a given solvent; we also discussed factors that influence the rate of dissolving.
We went on to do solubility curves, which are found on Table G of your reference tables. We covered and applied the meaning of a saturated, unsaturated, and supersaturated solution. More practice with this tomorrow. You should finish the Orange Review Book Topic 7 questions before Thursday's test.
Honors: we finished some quantitative colligative properties problems and then went on to compare the relative freezing and boiling points of a group of various solutions.
We then derived the acidic and basic forms of the Henderson-Hasselbalch equation.
We will be learning about buffers and then 6-part titration problems in which buffer solutions necessarily form during the titration. Those problems will seem long at first but, with practice, will become quite mechanical.
Regents: we did the long haul and covered some ground today; we finished molality/colligative properties problems. You must know how to name any salt or molecule and know that molecules (except acids) do not dissociate upon dissolving; you must know the number of particles that a given formula unit of a salt dissociates into.
We learned factors that influence the solubility of a given solute in a given solvent; we also discussed factors that influence the rate of dissolving.
We went on to do solubility curves, which are found on Table G of your reference tables. We covered and applied the meaning of a saturated, unsaturated, and supersaturated solution. More practice with this tomorrow. You should finish the Orange Review Book Topic 7 questions before Thursday's test.
Honors: we finished some quantitative colligative properties problems and then went on to compare the relative freezing and boiling points of a group of various solutions.
# posted by C @ 5:52 PM 
