Archive – Q3 –  week 7 – 18-19

week 7

Week of 3/19 – 3/23 – PLEASE REFRESH EVERY TIME!

3/19 – Monday – period 2 –

1:  Quick General review of Ksp/equilibrium/Q vs Keq – used New Ksp notes

2:  Ksp TEST – (10 point) AP Question –  1 question part 2 test – (20 minutes)

period 3/4 –

1:  Quick General review of Ksp/equilibrium/Q vs Keq – used New Ksp notes

2:  Ksp TEST – (10 point) AP Question –  1 question part 2 test – (20 minutes)

3.  Review of test with key/started Equlibrium 2 – Gibbs and lechats.pdf

3/18 – Monday Homework:  Tomorrow you will have a 40 minute test that consists of 2 part sections
1 will be a Ksp question and the other will be a thermo question.

1.  Review the PRACTICE Test with the keys below. Period 4 class: I will go over the PRACTICE Test with you in terms of how to score the practice AP Question.

You will have a 2 question (40 minute) part 2 TEST tomorrow.  A good review would be the following AP questions.

2.  Complete the THermo  worksheet below and review with the key.( I gave you this last week!)
3:  Please complete Equilibrium 5b – Ksp practice.pdf  and review with key below.
I made a lecture for this problem below!

***In Question (b) ii  of Equilibrium 5b – Ksp practice.pdf I did not finish the sentence:
Calculate the minimum concentration of F(aq)  necessary to initiate precipitation of the salt selected in part (b)(i).

Today’s Test Blank and Keys
Practice Ksp Test Blank and Keys
Equlibrium 5b – Ksp 2010 ques 1.pdf
Equlibrium 5b – Ksp 2010 ques 1 key p Grodski Board.pdf

Equlibrium 5b – Ksp 2010 ques 1 key College Board.pdf

Thermo Practice:
Equlibrium 2 – Gibbs and lechats.pdf

Equlibrium 2 – Gibbs and lechats key.pdf
Ksp Practice:
Equilibrium 5b – Ksp practice.pdf

Equilibrium 5b – Ksp practice key (AP Central key).pdf

Lecture on the Ksp Practice – Equilibrium 5b – Ksp practice.pdf:
End of Monday..

3/19 – Tuesday  period 2 /3-

1. Review of Monday’s test.
2. Ksp and Thermo test –  2 question part 2 test – (40 minutes)
two 10 point part 2 AP Questions.
period 4 –
1. Ksp and Thermo test –  2 question part 2 test – (40 minutes)
two 10 point part 2 AP Questions.

3/19 – Tuesday Homework:

1. Please review your test with the key that was given out at the end of the test.
The faster you look and review the stronger the connection you will make with the material.

*Remember that yesterday’ s test for those that did well will count in place of future test:
The curve I used has the following breakdown:
I will use it tomorrow but just double the raw score since the test is out of 20 raw AP points. (14/20  = 5 = 95)

7/10     =      5         =              95%
6/10     =     4         =              90%
5/10     =             =              80%
4/10     =     2         =              70%
3/10     =     1          =              60%
2/10     =     1          =              50%
1/ 10     =     1          =             40%
2. Please complete the following form which are past AP multiple choice questions on equilibrium.

#### Equilibrium MC Review Form 1a 1819

End of Tuesday..

3/20 – Wednesday – period 2 –

1. Review Ksp and Thermo test –

2. Intro to Rate Law

period 3/4 –

1. Review Ksp and Thermo test –

2.  Intro to Rate Law

#### Rate Law

Rate Law Intro Lecture 1:

Rate Law Intro Lecture 2:

3/20 – Wednesday Homework:

1. Watch Rate Law intro lecture 1 above.

You really need to view the lecture 1 Before moving on the Rate Law 2 lecture!

2.  Watch Rate Law intro Lecture 2 above and follow along with the Kinetics honors rate law rumble –
worksheet and complete Kinetics honors rate law rumble – pdf.pdf worksheet (questions 2 and 4).
3
: Please complete 2005B problem in Kinetics 1 – rate law.pdf  worksheet (first side).
4: Review with Keys below
Rate Law Rumble 1819.pdf

Kinetics honors rate Law rumble key p – pdf.pdf

Kinetics 1 – rate law.pdf

Kinetics 1 – rate law key.pdf
End of Wednesday!

3/21 – Thursday – Period 2/3-
1: Rate Law Basics – from New Rate Law Note –

-Factors tha affect Rate of reaction – demos
a) What Rate Law is not (not a measure of spontaneity) – a pathway from the initial to final state-
b) Coefficients becomes orders for Reactants in the RATE LAW EQUATION
for ELEMENTARY REACTION ONLY!
c) Basic mechanism – slowest step is Rate Determining Step (RDS) –  The Elementary step in a reaction
mechanism that is the RDS defines the RATE LAW.

2: Mechanisms – did not get to the fast equilibrium mechanism – will complete as part of the homework.

Kinetics 2 – rate law.pdf
Kinetics 2 – rate law KEYp .pdf
Kinetics mechanisms – fast equilibrium.pdf

Kinetics mechanisms – fast equilibrium KEY.pdf

Period 4
1: Rate Law Basics

-Factors tha affect Rate of reaction – demos
a) What Rate Law is not (not a measure of spontaneity) – a pathway from the initial to final state-
b) Coefficients becomes orders for Reactants in the RATE LAW EQUATION
for ELEMENTARY REACTION ONLY!
c) Basic mechanism – slowest step is Rate Determining Step (RDS) –  The Elementary step in a reaction
mechanism that is the RDS defines the RATE LAW.

2: Mechanisms- Fast equilibrium – did not get to this – Hw.
Today’s Demos:

A rate of reaction demo with liquid oxygen:
3/21 – Thursday Homework:

All Classes –

1.  Please watch the video on how to deal with the “fast equilibrium” mechanism. You will Complete the Kinetics mechanisms – fast equilibrium.pdf with me.

2: Complete the Kinetics mechanisms – fast equilibrium.pdf  worksheet (backside) and review the key.
3: Complete 1st page of Kinetics 2 packet specifically, 1984B. Omit questions c) and d) and review with key above.
4: Please complete the 2nd page of the kinetics 2 worksheet  (specifically  1994 B worksheet) and
review with the key.
Fast equilibrium- Lecture:
End of Thursday..

3/22 – Friday –  Period 2-

Students missing today could take the 20 minute RATE LAW Test after school or in your off period.
1: Review of mechanisms that determine Rate Law.
Really just took questions on the homework and worked on the 2nd (middle question) of the packet for review        for the Rate Law/ Ksp Part 2 TEST 🙂
2: Rate Law test (timed )
Period 3/4 –

Students missing today could take the 20 minute RATE LAW Test after school or in your off period.

TODAY’s Lecture:

1: Mechanisms that determine rate Law – Fast equilibrium
2: Rate Law Test (timed)
3/22 – Friday – H0mework:  READ ALL NOTES BELOW!
Please follow these instructions. If you do these out of order you will not learn an reinforce the concepts that I want you to review.

I am asking a lot here but this is studying for the AP in the best way that lead the best results!

– Also Tuesday next week you will be taking a 40 minute part 2 (2 question test) that will be a RATE LAW and KSP Part 2 question.  Please review your KSP tests also look into next week under Monday and you will find a class lecture of me reviewing a couple of past released part 2 Ksp questions.

1:  Please watch the Weekend Lecture below on the derivation of the 0th, 1st, and 2nd Order Integrated  Rate Law formula.
These formulas help us utilize time with changes in our reactant concentrations!
How long does it take for the reaction to be completed?
How long does it take for the concentration of my reactant to reach a certain value?
Given the time, how much of the reactant remains?
What is the shelf life of the chemical? (how long does it take to decompose?)

2: Complete the Form that goes along the video.

3. Read the notes below on the new INTEGRATED RATE LAW Formulas

*4: Complete the following worksheet and review with the keys:
Give yourself 40 minutes, these are 2 part 2 questions, then grade. The goal is 7 out of 10.

2005B 2009 Kinetics quiz 2013 with college board and grodski keys.pdf

These formulas are USED WITH TIME!! They are used 2 ways.

1: They can be used to identify the Rate Order By how they are graphed. For instance if you graph a 1st order reaction using the ln[A]t  (ln of concentration of reactant at some time period) in the y axis and the t (time)  in the x axis it will be linear with a negative slope.  If it is not linear with a negative slope then the reactant is not 1st order.
See the reference table below.
2: Once you identify the whether the RATE ORDER is 1 or 2 use the correct integrated rate law equation to solve either the time (t), initial concentration [A]0 , concentration of reactant after some time[A]t ,
or the rate constant, k.
What this lecture describes is the mathematics  (Calculus ) needed to solve for or Link Time with remaining reactants.  These important derivations will derive our Integrated Rate Law Formulas that are given to us in our reference tables.   They help us identify the order (or exponents) of our reactants in our Rate Law Equation just by graphing the changes of concentrations of the reactants in time during a chemical reaction.

Here they are in our reference tables: It is usually very helpful to utilize these equations when you arrange them into a linear equation.   1st Order:                   X   –>  Y                                         R = K [X]1                                                                   ln[A]t – ln[A]0 =  -kt                                ln[A]t  =   -kt   +    ln[A]0                                 y      =    mx  +      b                                         (negative slope)  2nd Order:                X  +   X  –>  X2                                            1   –   1     =  kt                                  [A]t    [A]0                                            1     =  kt   +    1                                  [A]t                [A]0                                                 y     = mx  +   B                                                                                (positive slope)

#### Integrated Rate Law Formulas Form – 1819

Weekend lecture:

Chemistry Calculus

Have a Weekend.