Monday, January 5, 2009
Mon-Day 2 New Year 2009!
Happy 2009 to you all! I treated myself to a B'berry so now I can more conveniently update this blog at all times of the day or night. Ah technology, making life easier and harder at the same time.
AP Chem- The ANNOTATED answer key to the vacation assignment is now posted on Blackboard. Note the extensive use and DESIGNATION of units WITH attribution to either the solvent or solute; this is a BIG DEAL. Use and PROPER cancellation of units will HEAVILY influence your grade on Thursday's exam. For each question you MUST
1. Write the applicable formula
2. REARRANGE the applicable formula (unless you are starting with the isolated requested variable on one side of the equation) so that you are solving for what is requested
3. Plug in the properly labeled data WITH units.
4. After that, the problem solves itself! If you make a calculator error at this point, assuming the first three steps are correct, you will not lose more than one or two points (probably just one point unless your answer is ridiculous) out of ten or fifteen.
Today we began our review of the vacation assignment.
Points noted:
in transition metal complex ANIONS, ONLY the transition metal name gets the suffix ATE;
oftentimes, you will end up writing two vowels in a row e.g. hexaaqua or tetraammine;
transition metal complexes form BECAUSE there are d orbitals that are close in energy to the valence principal energy level s and p orbitals, which hybridize to form 6 empty d2sp3 or 5 empty dsp3 orbitals that overlap to form coordinate covalent sigma bonds with the lone pairs of electrons in orbitals from the ligand molecules or ions.
We then rearranged the freezing point depression or boiling point elevation formulas to directly solve for the molar mass of the solute. The final formula shows proper unit cancellation and ends up with units of grams per mole. Try to cancel the units and see how the formula works because you will have to do this on Thursday's exam.
Molar mass of solute = ( k x i x grams of solute) divided by ( delta T x kg of solvent)
Bio 6- we reviewed the digestive structure and function of the small intestine, its accessory organs (liver and pancreas), and the large intestine/colon. We reviewed the results of digestion for each major nutrient (carbs, lipids, proteins, and nucleic acids) and the enzymes involved in the digestion/hydrolysis of each nutrient.
We are almost done with all of the nutrition/digestion objectives so we can transition to the regulation/endocrine system part of this unit.
Bio 7/8- we reviewed the digestive structure and function of the small intestine, its accessory organs (liver and pancreas), and the large intestine/colon. We reviewed the results of digestion for each major nutrient (carbs, lipids, proteins, and nucleic acids) and the enzymes involved in the digestion/hydrolysis of each nutrient.
We are almost done with all of the nutrition/digestion objectives so we can transition to the regulation/endocrine system part of this unit.
We finished the writeup/data part of the antagonistic muscle group lab. I'll grade that sometime this week; remind me on Friday if you do not see your grade, thank you.
AP Chem- The ANNOTATED answer key to the vacation assignment is now posted on Blackboard. Note the extensive use and DESIGNATION of units WITH attribution to either the solvent or solute; this is a BIG DEAL. Use and PROPER cancellation of units will HEAVILY influence your grade on Thursday's exam. For each question you MUST
1. Write the applicable formula
2. REARRANGE the applicable formula (unless you are starting with the isolated requested variable on one side of the equation) so that you are solving for what is requested
3. Plug in the properly labeled data WITH units.
4. After that, the problem solves itself! If you make a calculator error at this point, assuming the first three steps are correct, you will not lose more than one or two points (probably just one point unless your answer is ridiculous) out of ten or fifteen.
Today we began our review of the vacation assignment.
Points noted:
in transition metal complex ANIONS, ONLY the transition metal name gets the suffix ATE;
oftentimes, you will end up writing two vowels in a row e.g. hexaaqua or tetraammine;
transition metal complexes form BECAUSE there are d orbitals that are close in energy to the valence principal energy level s and p orbitals, which hybridize to form 6 empty d2sp3 or 5 empty dsp3 orbitals that overlap to form coordinate covalent sigma bonds with the lone pairs of electrons in orbitals from the ligand molecules or ions.
We then rearranged the freezing point depression or boiling point elevation formulas to directly solve for the molar mass of the solute. The final formula shows proper unit cancellation and ends up with units of grams per mole. Try to cancel the units and see how the formula works because you will have to do this on Thursday's exam.
Molar mass of solute = ( k x i x grams of solute) divided by ( delta T x kg of solvent)
Bio 6- we reviewed the digestive structure and function of the small intestine, its accessory organs (liver and pancreas), and the large intestine/colon. We reviewed the results of digestion for each major nutrient (carbs, lipids, proteins, and nucleic acids) and the enzymes involved in the digestion/hydrolysis of each nutrient.
We are almost done with all of the nutrition/digestion objectives so we can transition to the regulation/endocrine system part of this unit.
Bio 7/8- we reviewed the digestive structure and function of the small intestine, its accessory organs (liver and pancreas), and the large intestine/colon. We reviewed the results of digestion for each major nutrient (carbs, lipids, proteins, and nucleic acids) and the enzymes involved in the digestion/hydrolysis of each nutrient.
We are almost done with all of the nutrition/digestion objectives so we can transition to the regulation/endocrine system part of this unit.
We finished the writeup/data part of the antagonistic muscle group lab. I'll grade that sometime this week; remind me on Friday if you do not see your grade, thank you.
# posted by C @ 12:51 PM 
