Archive – Q2 week 9 – 20 – 21
Week of 1/19 – 1/22
Please Refresh every time you open– this page is changing often!
The 4 day – A, B, C, D cycle looks like this:
Day Period
2 3 4
In class: A Lab Lab Single Class
Remote: Lab Lab Single Class
Monday In class: B Single Class LAB LAB
Remote: Single Class LAB LAB
In class: C Single Class LAB LAB
Remote: Single Class LAB LAB
In class: D Lab Lab Single Class
Remote: Lab Lab Single Class
This weeks 5 day Schedule:
1/19 – Tuesday “B” Day –period 2, – I 2(B,D) 3(D) AP CHEMISTRY
– period 2, – R 2(B,D) 3(D) REMOTE INSTRUCTION
-period 3,4 (LAB) – I 3(B) 4(B,D) AP CHEMISTRY
-period 3,4 (LAB) – R 3(B) 4(B,D) REMOTE INSTRUCTION
1/20 – Wednesday – “C” Day – period 2, – I 2(A,C) 3(A) AP CHEMISTRY
–period 2, – R 2(A,C) 3(A) REMOTE INSTRUCTION
-period 3,4 (LAB) – I. 3(C) 4(A,C) AP CHEMISTRY
-period 3,4 (LAB) – R 3(C) 4(A,C) REMOTE INSTRUCTION
1/21 – Thursday- “D” Day – period 2,3 (Lab) – I 2(B,D) 3(D) AP CHEMISTRY
– period 2,3 (Lab) – R 2(B,D) 3(D) REMOTE INSTRUCTION
-period 4 – I 3(B) 4(B,D) AP CHEMISTRY
-period 4 – R 3(B) 4(B,D) REMOTE INSTRUCTION
1/22 – Friday “A” Day – period 2,3 (Lab) – I 2(A,C) 3(A) AP CHEMISTRY
–period 2,3 (Lab) – R 2(A,C) 3(A) REMOTE INSTRUCTION
-period 4 – I 3(C) 4(A,C) AP CHEMISTRY
-period 4 – R 3(C) 4(A,C) REMOTE INSTRUCTION
1/19 – Tuesday “B” Day –period 2, – I 2(B,D) 3(D) AP CHEMISTRY
– period 2, – R 2(B,D) 3(D) REMOTE INSTRUCTION
-period 3,4 (LAB) – I 3(B) 4(B,D) AP CHEMISTRY
-period 3,4 (LAB) – R 3(B) 4(B,D) REMOTE INSTRUCTION
The Blue and the Orange Team are Remote today. Please move to the Remote Page.
Period 2, Period 4:
1. Vapor Pressure Form – most incorrect questions.
a) Boltzmann distribution curve- Both curves
IMF’s not bonds!! Physical change!
2. visual of vapor pressure – animation
3. List of vapor pressure water
4. Vapor pressure curves, Demo of liquids
5. Boiling, Normal Boiling point, Boiling cold demos-
6. Phase diagram – water
7. Phase diagram – CO2
Today’s presentation:
Period 3:
1. Lab 19 – Boyles Law Syringes
Today’s lesson :
1/19 – Tuesday “B” Day Homework –
1. Please view the lecture below up to 11:56 (forget the last slide):
2. Complete Phase diagram worksheet and review the answers with the key that is on the same
worksheet.
Phase diagram of water into vapor pressure
*
End of Monday..
1/20 – Wednesday – “C” Day – period 2, – I 2(A,C) 3(A) AP CHEMISTRY
–period 2, – R 2(A,C) 3(A) REMOTE INSTRUCTION
-period 3,4 (LAB) – I. 3(C) 4(A,C) AP CHEMISTRY
-period 3,4 (LAB) – R 3(C) 4(A,C) REMOTE INSTRUCTION
The Red and the Green team are Remote Today. Please move to the Remote Instruction page.
Period 2, Period 3:
1. Phase diagram Review:
a) Critical Point
b) water vs. carbon dioxide
c) Freeze dried / astronaut food
d) ICE SKATING/ the titanic
2. Kinetic Molecular Theory Gas law Derivations – Take notes, quiz on this?
In your reference Tables:
Period 4:
1. Lab 19 – Boyles Law Syringes
1/20 – Wednesday – “C” Day – Homework:
We are moving into the last topic of Gas Laws.
We have been describing how the different variables affect each other with the derivation of our gas laws but we have not explained why gases behave this way. Gas behavior is explained through the Kinetic Molecular Theory and it is best understood through ANOTHER Derivation!!
1. Please watch me derive the Kinetic Molecular Theory formulas in the video below. Take notes and follow along with me.
START THE VIDEO AT 24:00 which will pick up where we left off in class FOR BOTH CLASSES!!
I will give you the assumptions, Governing Equations, and the symbols.
I will give you some of the derivation in a skeleton format to help you complete it.
Video of Grodski completing the derivation:
START THE VIDEO AT 24:00
END of Wednesday…
1/21 – Thursday- “D” Day – period 2,3 (Lab) – I 2(B,D) 3(D) AP CHEMISTRY
– period 2,3 (Lab) – R 2(B,D) 3(D) REMOTE INSTRUCTION
-period 4 – I 3(B) 4(B,D) AP CHEMISTRY
-period 4 – R 3(B) 4(B,D) REMOTE INSTRUCTION
The Blue Team and the Orange Team are Remote today. Please move to the Remote Instruction Page.
Period 2, Period 4:
1. Complete derivation in class. I know that you did for homework…maybe??
2. Kinetic Molecular theory formula derivation Mock Quiz
3. Units of R for Kinetic molecular Theory.
Notes:
In Kinetic Molecular Equations – (Used to help describe why gases behave according to the ideal
gas law and all of its derived equations: M = dRT & d = PM
P RT
Kinetic Molecular Equations are centered around Kinetic Energy formula, KE = 1/2 mu2
and thus are centered around the SI unit of energy = Joule.
Thus our Kinetic Molecular equations must have terms or units that reflect equivalents in Joules.
Remember from experimental evidence PV = nRT or R = PV
nT
and we have been using .08206 (atm L)
(mole K)
as our Gas Law constant (proportionality constant) and you have learned that you must be in same units for your variables as your ideal gas law constant, R otherwise units do not cancel and your calculation will be in error.
In Kinetic Molecular Equations we cannot use this value of R
that has uses Pressure (atm) and Volume (V) in its Numerator.
We need a value of R that uses Joules instead in order to reflect the KE that is part of the derived Kinetic Molecular Equations that we derived.
KE per mole = 3/2 RT Urms = √3RT
Root Mean Squared Speed M
This R cannot be the same value as we have been using as it needs to reflect Joules (Energy).
Well fortunately, P x V (the numerator in R) actually can equal Joules if we change the units of
Pressure from atm to Force/Area and Volume from L to meter3 (length x width x height):
Force = mass x acceleration due to gravity
Kg x meter/sec2
Area = meter2
P x V = Energy
force/area length x width x height
Force x meter3
meter2
( Kg x meter/sec2 ) x (meter3 ) = Kg meter2 = Joule
meter2 sec2
So with our Kinetic Molecular equations we use R = 8.31 J _
mol K
This is given in our reference tables:
Also because a joule is really a Kg meter2 / sec2 then M must be in Kg!
Kinetic Molecular Theory Presentation:
Period 3:
1. Lab 19 – Boyles Law Syringes
1/21 – Thursday- “D” Day Homework:
1. Please complete just the front page of the Gas Law worksheet 6 – kinetic energy-grahams law.pdf worksheet.
2. Review with the key but I suggest you follow along with me in the video below.
Lecture that reviews Gas Law worksheet 6: View up to 20:30 only
End of Thursday!
1/22 – Friday “A” Day – period 2,3 (Lab) – I 2(A,C) 3(A) AP CHEMISTRY
–period 2,3 (Lab) – R 2(A,C) 3(A) REMOTE INSTRUCTION
-period 4 – I 3(C) 4(A,C) AP CHEMISTRY
-period 4 – R 3(C) 4(A,C) REMOTE INSTRUCTION
The RED team and the Green team are remote today. Please move to the Remote instruction page.
Period 2, Period 4:
1. Review Kinetic Energy homework 1st page- conversions
2. Derive Graham’s law of Diffusion –
a) model first problem on backside of last nights homework
2 gases at the same temperature:
KE = 1/2 m
µ2
Gas A: 10000 J = 1/2 (2 Kg/mol) (100 m/sec)2
Gas B: 10000 J = 1/2 (200 Kg/mol) (10 m/sec)2
Graham’s Law of diffusion Demo’s
a) HCl vs NH3
b) Manometer with He and SF6
c) Demo Graham’s law effusion and diffusion of the 2 balloon in class.Amazing Grace – speed of sound
Grahams Law of diffusion demos used in class discussion:
HCl and NH3
So after today we now have another gas law equation in our reference tables:
Grahams Law – really root mean squared:
Period 3:
1. Lab 19 – Boyles Law Syringes
Today’s Grahams Law manometer demo:
Amazing Grace Demo:
1/22 – Friday “A” Day Homework:
1. Please complete the second side of the Gas Law worksheet 6 – kinetic energy-grahams law.pdf
worksheet.
2. Review with the key or follow along with the video below:
*At 20:30 of the lecture posted last night I review the first problem on the second side.
3. Please complete the form below: You will have a total of 2 submissions.
END OF WEEK 9!
Remote Instruction:
|
1/19 – Tuesday “B” Day –period 2, – I 2(B,D) 3(D) AP CHEMISTRY
– period 2, – R 2(B,D) 3(D) REMOTE INSTRUCTION
-period 3,4 (LAB) – I 3(B) 4(B,D) AP CHEMISTRY
-period 3,4 (LAB) – R 3(B) 4(B,D) REMOTE INSTRUCTION
The Blue and the Orange Team are Remote today.
Zoom Stream Information:
Topic: AP Chemistry – 01.19 Periods 2,3,4
Time: Jan 19, 2021 08:00 AM Eastern Time (US and Canada)
Join Zoom Meeting
https://us02web.zoom.us/j/82700789344?pwd=SER4YXJFdkJpcDhKL3Y3RGVCeGZ5UT09
Meeting ID: 827 0078 9344
Passcode: a9aYev
One tap mobile
+16465588656,,82700789344#,,,,*844554# US (New York)
Period 2, Period 4:
1. Vapor Pressure Form – most incorrect questions.
a) Boltzmann distribution curve- Both curves
IMF’s not bonds!! Physical change!
2. visual of vapor pressure – animation
3. List of vapor pressure water
4. Vapor pressure curves, Demo of liquids
5. Boiling, Normal Boiling point, Boiling cold demos-
6. Phase diagram – water
7. Phase diagram – CO2
Period 3 – Lab 19 that you will do tomorrow.
Full Remote : I will Live stream tomorrow.
1/20 – Wednesday – “C” Day – period 2, – I 2(A,C) 3(A) AP CHEMISTRY
–period 2, – R 2(A,C) 3(A) REMOTE INSTRUCTION
-period 3,4 (LAB) – I. 3(C) 4(A,C) AP CHEMISTRY
-period 3,4 (LAB) – R 3(C) 4(A,C) REMOTE INSTRUCTION
The Red and the Green team are Remote Today.
Zoom Stream Information:
Topic: AP Chemistry – 01.20 – Periods 2,3,4
Time: Jan 20, 2021 08:00 AM Eastern Time (US and Canada)
Join Zoom Meeting
https://us02web.zoom.us/j/87853346297?pwd=WkgyUThnL3NyVFBtOExkd0ZVQUM1QT09
Meeting ID: 878 5334 6297
Passcode: i235xu
One tap mobile
+16465588656,,87853346297#,,,,*429210# US (New York)
Period 2, Period 3:
1. Phase diagram Review:
a) Critical Point
b) water vs. carbon dioxide
c) Freeze dried / astronaut food
d) ICE SKATING/ the titanic
2. Kinetic Molecular Theory Gas law Derivations – Take notes, quiz on this?
In your reference Tables:
Period 4: Live Stream of the Lab 19 FOR THE FULL REMOTE STUDENTS
1. Lab 19 – Boyles Law Syringes
Here is the Lab data from today’s Live Stream of the Lab:
1/21 – Thursday- “D” Day – period 2,3 (Lab) – I 2(B,D) 3(D) AP CHEMISTRY
– period 2,3 (Lab) – R 2(B,D) 3(D) REMOTE INSTRUCTION
-period 4 – I 3(B) 4(B,D) AP CHEMISTRY
-period 4 – R 3(B) 4(B,D) REMOTE INSTRUCTION
The Blue Team and the Orange Team are Remote today.
Zoom Stream Information:
Topic: AP Chemistry – 01.21 Periods 2,3,4
Time: Jan 21, 2021 08:00 AM Eastern Time (US and Canada)
Join Zoom Meeting
https://us02web.zoom.us/j/89850118186?pwd=QlZjQUMxZGhucVl4ejUvVVFXenljdz09
Meeting ID: 898 5011 8186
Passcode: cf1vSj
One tap mobile
+16465588656,,89850118186#,,,,*616171# US (New York)
Period 2, Period 4:
1. Complete derivation in class. I know that you did for homework…maybe??
2. Kinetic Molecular theory formula derivation Mock Quiz
3. Units of R for Kinetic molecular Theory.
Notes:
In Kinetic Molecular Equations – (Used to help describe why gases behave according to the ideal
gas law and all of its derived equations: M = dRT & d = PM
P RT
Kinetic Molecular Equations are centered around Kinetic Energy formula, KE = 1/2 mu2
and thus are centered around the SI unit of energy = Joule.
Thus our Kinetic Molecular equations must have terms or units that reflect equivalents in Joules.
Remember from experimental evidence PV = nRT or R = PV
nT
and we have been using .08206 (atm L)
(mole K)
as our Gas Law constant (proportionality constant) and you have learned that you must be in same units for your variables as your ideal gas law constant, R otherwise units do not cancel and your calculation will be in error.
In Kinetic Molecular Equations we cannot use this value of R
that has uses Pressure (atm) and Volume (V) in its Numerator.
We need a value of R that uses Joules instead in order to reflect the KE that is part of the derived Kinetic Molecular Equations that we derived.
KE per mole = 3/2 RT Urms = √3RT
Root Mean Squared Speed M
This R cannot be the same value as we have been using as it needs to reflect Joules (Energy).
Well fortunately, P x V (the numerator in R) actually can equal Joules if we change the units of
Pressure from atm to Force/Area and Volume from L to meter3 (length x width x height):
Force = mass x acceleration due to gravity
Kg x meter/sec2
Area = meter2
P x V = Energy
force/area length x width x height
Force x meter3
meter2
( Kg x meter/sec2 ) x (meter3 ) = Kg meter2 = Joule
meter2 sec2
So with our Kinetic Molecular equations we use R = 8.31 J _
mol K
This is given in our reference tables:
 Also because a joule is really a Kg meter2 / sec2 then M must be in Kg! Kinetic Molecular Theory Presentation:
Period 3: Please use the video posted below of the Live stream of the Lab:
1. Lab 19 – Boyles Law Syringes
1/22 – Friday “A” Day – period 2,3 (Lab) – I 2(A,C) 3(A) AP CHEMISTRY
–period 2,3 (Lab) – R 2(A,C) 3(A) REMOTE INSTRUCTION
-period 4 – I 3(C) 4(A,C) AP CHEMISTRY
-period 4 – R 3(C) 4(A,C) REMOTE INSTRUCTION
The RED team and the Green team are remote today.
Zoom Stream Information:
Topic: AP Chemistry – 01.22 – periods 2,3,4
Time: Jan 22, 2021 08:00 AM Eastern Time (US and Canada)
Join Zoom Meeting
https://us02web.zoom.us/j/83503688409?pwd=bFkyYk8zdGlGUXJnQXkva2w2VnJEdz09
Meeting ID: 835 0368 8409
Passcode: 98wM37
One tap mobile
+16465588656,,83503688409#,,,,*135251# US (New York)
Period 2, Period 4:
1. Review Kinetic Energy homework 1st page- conversions
2. Derive Graham’s law of Diffusion –
a) model first problem on backside of last nights homework
2 gases at the same temperature:
KE = 1/2 m
µ2 Gas A: 10000 J = 1/2 (2 Kg/mol) (100 m/sec)2
Gas B: 10000 J = 1/2 (200 Kg/mol) (10 m/sec)2
Graham’s Law of diffusion Demo’s
a) HCl vs NH3
b) Manometer with He and SF6
c) Demo Graham’s law effusion and diffusion of the 2 balloon in class.Amazing Grace – speed of sound
Grahams Law of diffusion demos used in class discussion:
HCl and NH3
So after today we now have another gas law equation in our reference tables:
Grahams Law – really root mean squared:
Period 3: The RED team did this lab yesterday so the you guys can begin the homework.
The Blue team (in class) will complete the Lab 19 below.
1. Lab 19 – Boyles Law Syringes
|