Friday, October 17, 2008
Fri-Day 2
AP Chem- here are the Chapter 3 HW problems that will be due next Thursday:
#'s 25, 26, 30, 42, 48, 56, 68, 70, 78, 82, 110 , 126 (we have done each of these problem types in the notes, so far)...
also #'s 90, 99, 106 (you will be able to do these for sure by next week)
Your hydrate lab writeup will be due by next Wednesday. Make sure that you show all work explicitly and that you highlight the TWO hydrate prediction calculations that you did for your lab group.
Today, we did another gravimetric analysis problem in which we used mass (gravimetric) data to deduce the gram atomic mass of an element. The problem involved about six steps so this was relatively difficult and should require practice and repetition for hw (see practice test, etc. files on Blackboard). We then did simple (non-redox) equation balancing review; balanced equations show the MOLE RATIOS (NEVER gram or mass ratios!) of the reactants and products.
Bio 6/7- took the Cells and Cellular Transport Unit exam; then we finished our Plant and Animal Cell lab discussion after which we began the first of this year's four NY State Regents labs.
Bio 8- took the Cells and Cellular Transport Unit exam.
#'s 25, 26, 30, 42, 48, 56, 68, 70, 78, 82, 110 , 126 (we have done each of these problem types in the notes, so far)...
also #'s 90, 99, 106 (you will be able to do these for sure by next week)
Your hydrate lab writeup will be due by next Wednesday. Make sure that you show all work explicitly and that you highlight the TWO hydrate prediction calculations that you did for your lab group.
Today, we did another gravimetric analysis problem in which we used mass (gravimetric) data to deduce the gram atomic mass of an element. The problem involved about six steps so this was relatively difficult and should require practice and repetition for hw (see practice test, etc. files on Blackboard). We then did simple (non-redox) equation balancing review; balanced equations show the MOLE RATIOS (NEVER gram or mass ratios!) of the reactants and products.
Bio 6/7- took the Cells and Cellular Transport Unit exam; then we finished our Plant and Animal Cell lab discussion after which we began the first of this year's four NY State Regents labs.
Bio 8- took the Cells and Cellular Transport Unit exam.
# posted by C @ 1:15 PM 
