Wednesday, December 18, 2013
Wednes-Day 1
Chem 4/5 - explained valence bond orbital hybridization theory/model.
got up to three eleectron domains.
Do separate examples tomorrow.
Chem 8 -
got up to three eleectron domains.
Do separate examples tomorrow.
Chem 8 -
# posted by C @ 9:23 AM 
Tuesday, December 17, 2013
Tues-Day 2
Chem 5 - covered odd-electron/radical species; discussed bonding/PE reactivity of radicals.
Introduced hybridization. Quiz molec geom.
Chem 7/8 - Quiz. covered oxoacids, formal charge criteria, and then odd-electron molecules as above.
APB - did H problems involving steady state transfer between materials; analyzed T gradient, and again discussed k values.
Began Gas Law fundamental explanations via explaining K-M Theory.
Introduced hybridization. Quiz molec geom.
Chem 7/8 - Quiz. covered oxoacids, formal charge criteria, and then odd-electron molecules as above.
APB - did H problems involving steady state transfer between materials; analyzed T gradient, and again discussed k values.
Began Gas Law fundamental explanations via explaining K-M Theory.
# posted by C @ 7:33 AM
Monday, December 16, 2013
Mon-Day 1
Chem 4/5 - completed octet exceptions B, Be etc. discussed isomers and IMFA's. Did the formal charge game.
Did oxoacids.
Started odd electron molecules.
Chem 8 - got up to octet exceptions.
APB - did types of heat transfer.
Did quantitative heat rate/power qualitative and quantitative problems given thermal conductivities (discussed relative values of k).
Did oxoacids.
Started odd electron molecules.
Chem 8 - got up to octet exceptions.
APB - did types of heat transfer.
Did quantitative heat rate/power qualitative and quantitative problems given thermal conductivities (discussed relative values of k).
# posted by C @ 1:41 PM
Friday, December 13, 2013
Fri-Day 2
Chem 5 - finished electronic and molecular geometries.
Looked at expanded octet examples.
Do other octet exceptions, oxoacids, formal charge, on Monday.
Chem 7/8 - caught up to 5.
APB - did thermal expansion problems - give out table of alpha constants.
Didn't get to heat transfer and rate.
Finished momentum lab data collection.
Looked at expanded octet examples.
Do other octet exceptions, oxoacids, formal charge, on Monday.
Chem 7/8 - caught up to 5.
APB - did thermal expansion problems - give out table of alpha constants.
Didn't get to heat transfer and rate.
Finished momentum lab data collection.
# posted by C @ 12:45 PM
Thursday, December 12, 2013
Thurs-Day 1
Chem 4/5 - completed method of Lewis Structures, meaning of resonance structures, bond order, and electronic geometries up to trigonal bipyramidal.
Chem 8 - as above up to trigonal planar - unbelievable lack of comp on shape prediction.
APB - did another torque plank question; began Thermal Physics with mcdT derivation; did one HW 34 question.
Finished data collection on momentum inquiry lab.
Chem 8 - as above up to trigonal planar - unbelievable lack of comp on shape prediction.
APB - did another torque plank question; began Thermal Physics with mcdT derivation; did one HW 34 question.
Finished data collection on momentum inquiry lab.
# posted by C @ 7:18 PM
Wednesday, December 11, 2013
Wednes-Day 2
Chem 5 - related IMFA strength to vapor pressure to normal boiling point using Bolzmann distribution of KE curves. Emphasized independence of sample size in determining equilibrium vapor pressure.
7/8- same as 5, and then introduced Lewis Stucture method up to step 3.
APB - did two more cases of rotational equilibrium: boom/rod system - explained source of upward force at hinge (hinge on boom); diving board plank (do second example of that tomorrow).
Went over quiz spring max vertical displacement example as dropped from rest; oscillation about eq position, total displacement of 2A from drop position.
more momentum lab data collection.
7/8- same as 5, and then introduced Lewis Stucture method up to step 3.
APB - did two more cases of rotational equilibrium: boom/rod system - explained source of upward force at hinge (hinge on boom); diving board plank (do second example of that tomorrow).
Went over quiz spring max vertical displacement example as dropped from rest; oscillation about eq position, total displacement of 2A from drop position.
more momentum lab data collection.
# posted by C @ 11:02 AM
Tuesday, December 10, 2013
Tues-Day 1
Chem 4/5 - Periodicity Exam.
Chem 8 - discussed the various types of intermolecular attractions, and the causes thereof.
APB - did the first two classic cases of rotational equilibrium; setup organizer; discussed locations and directions of forces and torques.
Chem 8 - discussed the various types of intermolecular attractions, and the causes thereof.
APB - did the first two classic cases of rotational equilibrium; setup organizer; discussed locations and directions of forces and torques.
# posted by C @ 7:12 AM
Monday, December 9, 2013
Mon-Day 2
Chem 5 - discussed the three types of IMFA; related IMFA to vapor pressure and boiling point differences.
7/8 - Periodicity exam
APB - work/SHM multiple choice exam. (vertical spring release derivation)
Continued Torque, calculating net torque from system of forces and lever arms.
7/8 - Periodicity exam
APB - work/SHM multiple choice exam. (vertical spring release derivation)
Continued Torque, calculating net torque from system of forces and lever arms.
# posted by C @ 8:26 AM
Friday, December 6, 2013
Fri-Day 1
Chem 4/5 - covered periodicity/reactivity; SR reaction types, and then did sizes of isoelectronic series.
Began bonding unit, explaining the three types of chemical bonding.
Chem 8 - got to the type of chemical bonding. Unit Exam on Monday.
APB - resolved question of elastic collision angles by looking at complex derived formula and breaking it down. Masses, angles and velocities are co-dependent in elastic collisions.
began momentum inquiry lab.
Showed center of mass videos.
Began bonding unit, explaining the three types of chemical bonding.
Chem 8 - got to the type of chemical bonding. Unit Exam on Monday.
APB - resolved question of elastic collision angles by looking at complex derived formula and breaking it down. Masses, angles and velocities are co-dependent in elastic collisions.
began momentum inquiry lab.
Showed center of mass videos.
# posted by C @ 3:54 PM
Thurs-Day 2
Chem 5 - covered EA and second electron affinities, related to stabilizing effect of ionic lattice.
Chem 7/8 - as above. Then related chemical periodicity to reactivity, and covered single replacement redox reactions with reasoning.
APB - looked into relationship between initial and final angles , speeds, masses for elastic collisions (very time consuming). Showed that just choosing random angles will not usually result in elasticity, and also showed that at least one v final must be given.
Showed Pasco motion sensor operation.
Began Torque unit , relating torque to force causing rotational acceleration.
Chem 7/8 - as above. Then related chemical periodicity to reactivity, and covered single replacement redox reactions with reasoning.
APB - looked into relationship between initial and final angles , speeds, masses for elastic collisions (very time consuming). Showed that just choosing random angles will not usually result in elasticity, and also showed that at least one v final must be given.
Showed Pasco motion sensor operation.
Began Torque unit , relating torque to force causing rotational acceleration.
# posted by C @ 3:52 PM
Wednesday, December 4, 2013
Wednes-Day 1
Chem 4/5 - finished all remaining periodic trend explanations: electonegativity, electron affinity; covered EA anomalies, and 2nd EA.
Got to chemical reactivity based on Periodicity.
Tomorrow- begin Bonding.
Chem 8- got up to chemical reactivity of elements intro.
Still have to do EA and second EA, too.
APB - did ballistic pendulum and collision/impulse soccer question.
Showed how to use pasco motion sensors.
Start torque tomorrow.
Got to chemical reactivity based on Periodicity.
Tomorrow- begin Bonding.
Chem 8- got up to chemical reactivity of elements intro.
Still have to do EA and second EA, too.
APB - did ballistic pendulum and collision/impulse soccer question.
Showed how to use pasco motion sensors.
Start torque tomorrow.
# posted by C @ 8:37 AM
Tuesday, December 3, 2013
Tues-Day 2
Chem 5 - went over 1st IE trend, and then explained 1st IE anomalies in group 13 and group 16.
Chem 7/8 - as in 5. Began trend in electonegativities.
APB - did elastic collision in two dimensions; saw that the derived elastic formula did not work other than for magnitudes when the particles rebound in opposite directions for a given dimension.
Discussed impulse and the change in momentum that it imparts.
Did an impulse questions and then an "explosion" recoil question.
Chem 7/8 - as in 5. Began trend in electonegativities.
APB - did elastic collision in two dimensions; saw that the derived elastic formula did not work other than for magnitudes when the particles rebound in opposite directions for a given dimension.
Discussed impulse and the change in momentum that it imparts.
Did an impulse questions and then an "explosion" recoil question.
# posted by C @ 8:24 AM
Mon-Day 1
Chem 4/5 - explained periodic trend down a group; introduced various other trends by definition e.g. first IE, electonegativity, etc.
8- explained periodic trend L-R across a period.
APB- defined elastic vs. inelastic collisions. did elastic collision derivation. did two matrix elastic collision questions.
Collected more spring/pendulum data.
8- explained periodic trend L-R across a period.
APB- defined elastic vs. inelastic collisions. did elastic collision derivation. did two matrix elastic collision questions.
Collected more spring/pendulum data.
# posted by C @ 8:23 AM
