Sunday, March 26, 2006
AP Titration/Ksp Results
AP Solubility Titration exam was generally a good test for almost all. That bodes well for your AP exam score. The most common errors were the ones that I warned about (BECAUSE these errors are common...that means that you should take special care in the first MINUTE of EVERY test to write down the warnings and FOLLOW THEM): 1. not using the coefficient from the balanced equation in calculating the Ksp value 2. not starting from scratch for each SRFC table...S means "at the very START"
Some are getting into the habit of contradicting themselves right in the middle of their explanations. You could not possibly be reviewing these explanations because the contradictions are blatant (akin to increase means decrease). ALWAYS review your answers before handing in your test.
Overall, a good class average so far on the second-toughest test of the year, though.
Answers to previous AP exam hw through March 17 are posted. Do not bother to hand in hw after I have posted answers or handed the corrected hw back. Some of you are neglecting to hand in hw and your average is going to take a significant hit due to this foolhardiness. Don't ask to make it up now. You cannot. Meanwhile, others reliably hand in hw that is neatly and methodically done, which is excellent rehearsal for AP day since these questions are directly from past exams.
In the fourth quarter, each night's hw is worth about 40 points! An entire part II section EVERY night for about two weeks and change. If you are remiss then, you will fail the last quarter badly no matter what else you do- this HAS happened, sadly. If you do those practice exams honestly and make corrections, a score of 5 is nearly impossible to avoid.
Some are getting into the habit of contradicting themselves right in the middle of their explanations. You could not possibly be reviewing these explanations because the contradictions are blatant (akin to increase means decrease). ALWAYS review your answers before handing in your test.
Overall, a good class average so far on the second-toughest test of the year, though.
Answers to previous AP exam hw through March 17 are posted. Do not bother to hand in hw after I have posted answers or handed the corrected hw back. Some of you are neglecting to hand in hw and your average is going to take a significant hit due to this foolhardiness. Don't ask to make it up now. You cannot. Meanwhile, others reliably hand in hw that is neatly and methodically done, which is excellent rehearsal for AP day since these questions are directly from past exams.
In the fourth quarter, each night's hw is worth about 40 points! An entire part II section EVERY night for about two weeks and change. If you are remiss then, you will fail the last quarter badly no matter what else you do- this HAS happened, sadly. If you do those practice exams honestly and make corrections, a score of 5 is nearly impossible to avoid.
# posted by C @ 1:42 AM 
