Friday, April 24, 2009
Fri-Day 2
AP Chem-we will complete electrochem on Monday so I will post most of the remaining worksheets/tutorials on Blackboard. Practice each type of these problems; our unit test is on Wednesday.
We began our in-class AP Chem exam review by discussing a weak base ionization followed by the bases titration by HCl (aq).
We then did a quantum atom problem and just began the lab question.
There is a GUARANTEED lab question on each AP Part II. It can be quantitative (with calculator, part II A) or qualitative (no calculator needed, part II B). By the time you take the AP exam, we will have covered all of the necessary lab (and lab ERROR) questions.
Hints for this question: the gas collected in the tube is bubbled through water. ASSUME that the gas is not soluble in the water (otherwise a lot of the gas won't make it through the water but instead will REACT with/hydrolyze the water).
Don't forget that BOTH the unknown gas AND water vapor/gas is in the collection tube.
ASSUME ideal behavior for both gases so that you can use a certain equation in your calculations.
The calculations for this problem were done during the unit on gases/gas laws (HW and notes) so you may want to review what we did.
Bio 6- Continued our explanation of evolution via natural (or sometimes, artificial) selection.
Keep reviewing/re-writing these explanations; this theory is the central/unifying concept of Biology; all other units can be understood/interpreted in terms of the Theory of Evolution i.e. the main/characteristic traits of a given species are adaptations to particular environments.
Bio 7/8- Continued our explanation of evolution via natural (or sometimes, artificial) selection.
Keep reviewing/re-writing these explanations; this theory is the central/unifying concept of Biology; all other units can be understood/interpreted in terms of the Theory of Evolution i.e. the main/characteristic traits of a given species are adaptations to particular environments.
We then did a lab on comparative biochemistry to establish evolutionary relationships (shown via a phylogenetic tree) among several primates.
We began our in-class AP Chem exam review by discussing a weak base ionization followed by the bases titration by HCl (aq).
We then did a quantum atom problem and just began the lab question.
There is a GUARANTEED lab question on each AP Part II. It can be quantitative (with calculator, part II A) or qualitative (no calculator needed, part II B). By the time you take the AP exam, we will have covered all of the necessary lab (and lab ERROR) questions.
Hints for this question: the gas collected in the tube is bubbled through water. ASSUME that the gas is not soluble in the water (otherwise a lot of the gas won't make it through the water but instead will REACT with/hydrolyze the water).
Don't forget that BOTH the unknown gas AND water vapor/gas is in the collection tube.
ASSUME ideal behavior for both gases so that you can use a certain equation in your calculations.
The calculations for this problem were done during the unit on gases/gas laws (HW and notes) so you may want to review what we did.
Bio 6- Continued our explanation of evolution via natural (or sometimes, artificial) selection.
Keep reviewing/re-writing these explanations; this theory is the central/unifying concept of Biology; all other units can be understood/interpreted in terms of the Theory of Evolution i.e. the main/characteristic traits of a given species are adaptations to particular environments.
Bio 7/8- Continued our explanation of evolution via natural (or sometimes, artificial) selection.
Keep reviewing/re-writing these explanations; this theory is the central/unifying concept of Biology; all other units can be understood/interpreted in terms of the Theory of Evolution i.e. the main/characteristic traits of a given species are adaptations to particular environments.
We then did a lab on comparative biochemistry to establish evolutionary relationships (shown via a phylogenetic tree) among several primates.
# posted by C @ 1:12 PM 
