Monday, March 31, 2014
Mon-Day 1
It snowed! Crazy traffic.
Chem 4/5 - went through Hess's Law long and short form and did the two permutations of the short form.
Chem 8 - through heat of formation.
APB - redo lesson on straight wire, problem 2. simple B x v hand rule yields force on charge yields current direction .
Chem 4/5 - went through Hess's Law long and short form and did the two permutations of the short form.
Chem 8 - through heat of formation.
APB - redo lesson on straight wire, problem 2. simple B x v hand rule yields force on charge yields current direction .
# posted by C @ 2:06 PM 
Friday, March 28, 2014
Fri-Day 2
Chem 5 - finished calorimetry and introduced heat of formation for Hess
7/8 - as above.
APB -finished unit, deriving mass spec formulas with variables.
did classic current-carrying pair of wire repulsion/attraction problem, as how the Newton is defined.
Did one more Lenz problem. Unit over.
Finished circuits lab.
Do resistive inductive force Lenz problem with explanation.
7/8 - as above.
APB -finished unit, deriving mass spec formulas with variables.
did classic current-carrying pair of wire repulsion/attraction problem, as how the Newton is defined.
Did one more Lenz problem. Unit over.
Finished circuits lab.
Do resistive inductive force Lenz problem with explanation.
# posted by C @ 5:16 PM
Thursday, March 27, 2014
Thurs-Day 1
Chem 4/5 - went through detailed lab procedure for calorimetry, with error analysis.
Tomorrow - go to Hess and finish up to entropy part of unit.
8- got up to calorimetry setup.
APB - thoroughly practiced Lenz law situations.
Must further explain its relation to conservation of energy beyond infinite B field created.
Tomorrow - go to Hess and finish up to entropy part of unit.
8- got up to calorimetry setup.
APB - thoroughly practiced Lenz law situations.
Must further explain its relation to conservation of energy beyond infinite B field created.
# posted by C @ 8:12 AM
Wednesday, March 26, 2014
Wednes-Day 2
Chem 5 - Titration and Ksp exam
Chem 7/8 - went from thermo intro to 0th and 1st law to calorimetry lab setups.
APB - did several review problems, the finished flux, and then did Faraday's law, focusing on change in flux permutations.
Chem 7/8 - went from thermo intro to 0th and 1st law to calorimetry lab setups.
APB - did several review problems, the finished flux, and then did Faraday's law, focusing on change in flux permutations.
# posted by C @ 1:10 PM
Tuesday, March 25, 2014
Tues-Day 1
Chem 4/5 - went through the 0th and 1st laws of thermo and described the factors in the two types of calorimetry
Chem 8 - Ksp Titration exam
APB - looked at several examples of hand rule applications and formulas i.e. bubble chamber tracks etc.
stress that r of circular path of charge is smaller for greater a i.e. smaller mass and or greater magnetic force.
Chem 8 - Ksp Titration exam
APB - looked at several examples of hand rule applications and formulas i.e. bubble chamber tracks etc.
stress that r of circular path of charge is smaller for greater a i.e. smaller mass and or greater magnetic force.
# posted by C @ 10:11 AM
Monday, March 24, 2014
Mon-Day 2
Chem 5 - (forgot laptop!)
introduced Thermo with state functions with reference to application of Hess's Law.
7/8 - finished Ksp with inc. solubility of most salts in acidic solution.
Started final repeat example to a vacant response --- unit exam tomorrow.
APB - did hand rule 1 and 2 reinforcement problems, the first of which reinforced the electro unit.
Introduced Ampere's Law/ the first of two B-field direction hand rules. Made distinction between force hand rules and B-field hand rules.
Continued circuit lab.
introduced Thermo with state functions with reference to application of Hess's Law.
7/8 - finished Ksp with inc. solubility of most salts in acidic solution.
Started final repeat example to a vacant response --- unit exam tomorrow.
APB - did hand rule 1 and 2 reinforcement problems, the first of which reinforced the electro unit.
Introduced Ampere's Law/ the first of two B-field direction hand rules. Made distinction between force hand rules and B-field hand rules.
Continued circuit lab.
# posted by C @ 9:04 PM
Friday, March 21, 2014
Fri-Day 1
Chem 4/5 - finished Ksp unit with selective precip problem and inc solubility of some salts when acid is added.
8- done with selective precip.
Begin Thermo on Monday.
APB- derived qvB and IlB cross product formulas.
did two problems.
Could not explain spiral pathway.
8- done with selective precip.
Begin Thermo on Monday.
APB- derived qvB and IlB cross product formulas.
did two problems.
Could not explain spiral pathway.
# posted by C @ 4:44 PM
Thursday, March 20, 2014
Thurs-Day 2
Chem 5 - did complete precipitation assessment Q vs K, and quantitative solution down to grams of precipitate.
7/8 - as above and introduced selective precipitation. Great point: no SRFC needed if mass of precip isn't requested!!
APB - Electric Circuits exam
7/8 - as above and introduced selective precipitation. Great point: no SRFC needed if mass of precip isn't requested!!
APB - Electric Circuits exam
# posted by C @ 12:18 PM
Wednesday, March 19, 2014
Wednes-Day 1
Chem 4/5 - did comparative molar solubility in water vs. a solution containing a common ion of the sparingly soluble salt.
8- as above.
APB - formally began magnetism, discussing the cause and nature of the magnetic force, and the relation between B lines (NOT direction of force but of N "test compass needle"), ANTS, force direction, and charge velocity.
Didn't get to quantitative yet.
8- as above.
APB - formally began magnetism, discussing the cause and nature of the magnetic force, and the relation between B lines (NOT direction of force but of N "test compass needle"), ANTS, force direction, and charge velocity.
Didn't get to quantitative yet.
# posted by C @ 12:54 PM
Tues-Day 2
Chem 5- finished buffers from polyprotic acid conjugate salts. end of unit.Introduced Ksp unit.
7/8 - as above, compared Ksp to s to solubility for a given salt.
APB - finished circuits unit with complex circuit analysis, matrices.
continued circuits lab.
7/8 - as above, compared Ksp to s to solubility for a given salt.
APB - finished circuits unit with complex circuit analysis, matrices.
continued circuits lab.
# posted by C @ 12:53 PM
Monday, March 17, 2014
Mon-Day 1
Chem 4/5 - finished acid-base indicators, polyprotic acid titration curves, and buffers from those curves.
8- got to buffers as above.
APB - review problems on capacitors, RC circuit...didn't do extra complex circuit -do tomorrow, as well as AP 83 question review.
started circuit design lab.
8- got to buffers as above.
APB - review problems on capacitors, RC circuit...didn't do extra complex circuit -do tomorrow, as well as AP 83 question review.
started circuit design lab.
# posted by C @ 7:28 PM
Wednesday, March 12, 2014
Wednes-Day 2
Chem 5 - single period exam on buffers and Lewis a/b.
7/8 - finished qualitative titration curves, and then did a complete quantitative WA/SB titration followed by a WB/SA titration (almost done with that).
APB - covered EMF, terminal voltage, internal resistance. Give out HW 60 tomorrow after clarifying and drawing literal terminal voltages at points, and show all potential drops.
Started combo circuit VIRP tables to compare bulb brightness.
Tomorrow, do complex circuits and introduce RC. Friday, do RC.
7/8 - finished qualitative titration curves, and then did a complete quantitative WA/SB titration followed by a WB/SA titration (almost done with that).
APB - covered EMF, terminal voltage, internal resistance. Give out HW 60 tomorrow after clarifying and drawing literal terminal voltages at points, and show all potential drops.
Started combo circuit VIRP tables to compare bulb brightness.
Tomorrow, do complex circuits and introduce RC. Friday, do RC.
# posted by C @ 3:55 PM
Tuesday, March 11, 2014
Tues-Day 1
Chem 4/5 - finished analysis of titration curves;
did quantitative 5-part WA/SB titration.
Single period unit exam tomorrow sans titrations.
8- acid base buffer Lewis exam; no titration yet.
APB - did parallel circuit examples.
Began combo circuits with out to in strategy.
Give out HW 59 tomorrow; also EMF and internal resistance.
did quantitative 5-part WA/SB titration.
Single period unit exam tomorrow sans titrations.
8- acid base buffer Lewis exam; no titration yet.
APB - did parallel circuit examples.
Began combo circuits with out to in strategy.
Give out HW 59 tomorrow; also EMF and internal resistance.
# posted by C @ 8:32 AM
Monday, March 10, 2014
Mon-Day 2
Chem 5 - finished conjugate pair choices for a given pH buffer; wasted 30 minutes on acid-water lab safety and simple naming. Never again.
Began qualitative overview of titration curves up to WA by SB.
7/8 - finished effect of adding acid or base to a buffer; did conjugate choices as above, with practical considerations.
No response to simple H-H question buffer pH range from pKa = unit test tomorrow!
APB - did sample problems for series and parallel circuits, along with placement of volt and ammeters, power and energy formulas, etc. Tomorrow - combo practice.
Set up lab practical.
Began qualitative overview of titration curves up to WA by SB.
7/8 - finished effect of adding acid or base to a buffer; did conjugate choices as above, with practical considerations.
No response to simple H-H question buffer pH range from pKa = unit test tomorrow!
APB - did sample problems for series and parallel circuits, along with placement of volt and ammeters, power and energy formulas, etc. Tomorrow - combo practice.
Set up lab practical.
# posted by C @ 8:48 AM
Saturday, March 8, 2014
Fri-Day 1
Chem 4/5 - quantitatively contrasted the effect on pH of adding acid to a non-buffer vs. a buffer.
Emphasized importance of drawing and writing reacting species.
Used pH limits of a given buffer to appropriately choose a pair of conjugates for a desired pH buffer.
Quantitatively determined masses or vol/M of required conjugates - related to actually physically gathering these quantities - easier said than done (hydrated salts, solutions vs. pure acids).
Chem 8 - up to quantitative effects of adding acid to buffer.
APB - derived series, parallel, and combination resistor circuits. Explained same potential difference across each resistor in parallel, different potential difference across resistor in series.
In lab, practiced operating with digital multimeters; formally demo on Monday.
Emphasized importance of drawing and writing reacting species.
Used pH limits of a given buffer to appropriately choose a pair of conjugates for a desired pH buffer.
Quantitatively determined masses or vol/M of required conjugates - related to actually physically gathering these quantities - easier said than done (hydrated salts, solutions vs. pure acids).
Chem 8 - up to quantitative effects of adding acid to buffer.
APB - derived series, parallel, and combination resistor circuits. Explained same potential difference across each resistor in parallel, different potential difference across resistor in series.
In lab, practiced operating with digital multimeters; formally demo on Monday.
# posted by C @ 1:20 PM
Thurs-Day 2
Wednes-Day 1
Tues-Day 2
Monday, March 3, 2014
Mon-Day 1
No snow day but STUPID, USELESS assembly!!!
Had to truncate acid exam!
Chem 4/5 - 64 min exam
Chem 8-
APB - electrostatics quiz
Had to truncate acid exam!
Chem 4/5 - 64 min exam
Chem 8-
APB - electrostatics quiz
# posted by C @ 8:16 AM
Fri-Day 2
Chem 5 - finished acidic, basic, neutral salts and eq calculations. Test Monday.
Chem 7/8 - as above.
APB - explained charge distribution on hollow charged objects, both regular and irregular shapes; also graphed fully explained and applied capacitors/capacitance related to area, gap, voltage, and charge.
Chem 7/8 - as above.
APB - explained charge distribution on hollow charged objects, both regular and irregular shapes; also graphed fully explained and applied capacitors/capacitance related to area, gap, voltage, and charge.
# posted by C @ 8:04 AM
Thurs-Day 1
Chem 4/5 - finished base (amines, etc.) equilibria, did prediction of acidic, basic, neutral salts along with ionization reactions
Chem 8 - finished base equilibria
APB - did work done by field or applied force given a potential difference/voltage and charge worked on .
Related voltage and gap to constant electric field strength.
Chem 8 - finished base equilibria
APB - did work done by field or applied force given a potential difference/voltage and charge worked on .
Related voltage and gap to constant electric field strength.
# posted by C @ 8:01 AM
