Monday, January 31, 2011

Monday, Jan 31 A-day

Regular Chemistry -
Starter:
Determine the change in enthalpy for the following reaction:

C(graphite) + 2 H2(g) --> CH4(g) Ho =

Use these reaction equations:
C(graphite) + O2(g) --> CO2(g) Ho = -394 kJ
H2O(l) --> H2(g) + 1/2 O2(g) Ho = 286 kJ
2 O2(g) + CH4(g) --> CO2(g) + 2 H2O(l) Ho = 394 kJ

Lecture:
Chemistry in the News:
During class we got a magazine and did chemistry in the news with an article. We shared what we learned and then were introduced to our term project and received the rubric for it. You will get time in class to work on it Friday. To summarize the project. You and your lab partner are business partners 10-30 years in the future. You are making a new product that involves chemistry. You are advertising for a position in your plant that involves chemistry. One of you will make a 1/2 size poster to post in the 2300 hall to recruit for the job. The other will be creating a Google.doc to share with me at showell@dsdmail.net The person that creates the Google document, and if you so choose the other student will present to a group of potential employees a 2-4 minute summary. These will be due Feb 16. Please label your document in this fashion period last name last name (Example: 1 kutz tanner) This will help me get the points to the right person.

Lab for Next time: We received and wrote up the procedure and pre-lab for lab 3.4 Factors that Effect Reaction Rates We were able to see the reactions and how they will work. We get to do them next time. Be ready!

Summary: Ideas (Brainstormed) for your project.

Homework: 3.5 Hess' Law Worksheet


Honors Chemistry -
Starter:
Determine the change in enthalpy for the following reaction:

C(graphite) + 2 H2(g) --> CH4(g) Ho =

Use these reaction equations:
C(graphite) + O2(g) --> CO2(g) Ho = -394 kJ
H2O(l) --> H2(g) + 1/2 O2(g) Ho = 286 kJ
2 O2(g) + CH4(g) --> CO2(g) + 2 H2O(l) Ho = 394 kJ

Lecture:
Chemistry in the News:
During class we got a magazine and did chemistry in the news with an article. We shared what we learned and then were introduced to our term project and received the rubric for it. You will get time in class to work on it Friday. To summarize the project. You and your lab partner are business partners 10-30 years in the future. You are making a new product that involves chemistry. You are advertising for a position in your plant that involves chemistry. One of you will make a 1/2 size poster to post in the 2300 hall to recruit for the job. The other will be creating a Google.doc to share with me at showell@dsdmail.net The person that creates the Google document, and if you so choose the other student will present to a group of potential employees a 2-4 minute summary. These will be due Feb 16. Please label your document in this fashion period last name last name (Example: 1 kutz tanner) This will help me get the points to the right person.

Lab for Next time: We received and wrote up the procedure and pre-lab for lab 3.4 Factors that Effect Reaction Rates We were able to see the reactions and how they will work. We get to do them next time. Be ready!

Summary: Ideas (Brainstormed) for your project.

Homework: 3.5 Hess' Law Worksheet

AP Chemistry-
Starter -
Determine the change in enthalpy for the following reaction:

C(graphite) + 2 H2(g) --> CH4(g) Ho =

Use these reaction equations:
C(graphite) + O2(g) --> CO2(g) Ho = -394 kJ
H2O(l) --> H2(g) + 1/2 O2(g) Ho = 286 kJ
2 O2(g) + CH4(g) --> CO2(g) + 2 H2O(l) Ho = 394 kJ

Labs - 3.2 and 3.3

Homework - 3.6 bookwork

Also get Lab 3.4 ready to do.

Everything up to and including 3.7 should be done, corrected, and turned in by this Friday!

Thursday, January 27, 2011

Friday Jan 28 B-day

Substitute day - Mrs. Snyder our student teacher will be teaching 5th and 6th - BE GOOD! 8th - follow instructions under Honors chemistry.

Regular Chemistry -
Starter -
Magazine article summary- In a chemical magazine find and article and read it. Summarize it and tell how it involves chemistry.

Lecture - Then we talked about the term project and received the rubric for it. You will get time in class to work on it next time. To summarize the project. You and your lab partner are business partners 10-30 years in the future. You are making a new product that involves chemistry. You are advertising for a position in your plant that involves chemistry. One of you will make a 1/2 size poster to post in the 2300 hall to recruit for the job. The other will be creating a Google.doc to share with me at showell@dsdmail.net The person that creates the Google document, and if you so choose the other student will present to a group of potential employees a 2-4 minute summary. These will be due Feb 17.

Lecture - Finish notes and introduce term project. Work on term project.

Correct - Assign 3.3
Homework - Assign 3.4

Summary -
Balance and use the following information to find ∆H, ∆S, ∆G, and T.
C2H2 (g) + O2 (g) --> CO2 (g) + H2O (g)
∆H +226.7 kJ 0.0 kJ -393.5 kJ -241.8 kJ
S +0.2008 kJ/K +0.2050 kJ/K +0.2136 kJ/K +0.1887 kJ/K
∆G +209.2 kJ 0.0 kJ -394.4 kJ -228.6 kJ

Honors Chemistry -
Starter -
Balance and use the following information to find ∆H, ∆S, ∆G, and T.
C2H2 (g) + O2 (g) --> CO2 (g) + H2O (g)
∆H +226.7 kJ 0.0 kJ -393.5 kJ -241.8 kJ
S +0.2008 kJ/K +0.2050 kJ/K +0.2136 kJ/K +0.1887 kJ/K
∆G +209.2 kJ 0.0 kJ -394.4 kJ -228.6 kJ

Remember last time - We talked about the term project and received the rubric for it. You will get time in class to work on it next time. To summarize the project. You and your lab partner are business partners 10-30 years in the future. You are making a new product that involves chemistry. You are advertising for a position in your plant that involves chemistry. One of you will make a 1/2 size poster to post in the 2300 hall to recruit for the job. The other will be creating a Google.doc to share with me at showell@dsdmail.net The person that creates the Google document, and if you so choose the other student will present to a group of potential employees a 2-4 minute summary. These will be due Feb 17.

Worked on term project.

Correct - Assign 3.3
Homework - Assign 3.4

Summary…
1.What is the name of your company?
2.Who is your partner?
3.What is the “thing” that your company is making that involves chemistry?

Thursday Jan 27 A-day

Regular Chemistry
Starter -
Balance and use the following information to find ∆H, ∆S, ∆G, and T.
C2H2 (g) + O2 (g) --> CO2 (g) + H2O (g)
∆H +226.7 kJ 0.0 kJ -393.5 kJ -241.8 kJ
S +0.2008 kJ/K +0.2050 kJ/K +0.2136 kJ/K +0.1887 kJ/K
∆G +209.2 kJ 0.0 kJ -394.4 kJ -228.6 kJ

Corrected: Assign 3.3

Lecture: Activation Curve, Le Chatlier’s Principle, "Kool-aide" rules (the five factors that influence the reaction rate)

Hindenburg Video

Demo: Lycopodium powder

Homework - Worksheet 3.4 on H, G and S

A site to help you with thermochemistry.

Summary -
1.Thinking of the above reaction which way will the reaction
go if…
a. If heat is put into the reaction?
b. If pressure is increased?
c. If carbon dioxide is removed?
d. If water is put into the reaction?
2.Given the following information draw an activation curve, label and
give ∆E’, and Ea’. ∆E = -30 kJ and Ea = 50 kJ

Student journal was turned in.

Honors Chemistry
Starter -
Balance and use the following information to find ∆H, ∆S, ∆G, and T.
C2H2 (g) + O2 (g) --> CO2 (g) + H2O (g)
∆H +226.7 kJ 0.0 kJ -393.5 kJ -241.8 kJ
S +0.2008 kJ/K +0.2050 kJ/K +0.2136 kJ/K +0.1887 kJ/K
∆G +209.2 kJ 0.0 kJ -394.4 kJ -228.6 kJ

Corrected: Assign 3.3

Lecture: Keq, Activation Curve, Le Chatlier’s Principle, "Kool-aide" rules (the five factors that influence the reaction rate)

Hindenburg Video

Demo: Lycopodium powder

Homework - Worksheet 3.4 on H, G and S

A site to help you with thermochemistry.

Summary -
1. Write the Keq for the following equation:
2 C2H2 (g) + 5 O2 (g) <--> 4 CO2 (g) + 2 H2O (g) + 2511 kJ
2.Thinking of the above reaction which way will the reaction
go if…
a. If heat is put into the reaction?
b. If pressure is increased?
c. If carbon dioxide is removed?
d. If water is put into the reaction?
3.Given the following information draw an activation curve, label and
give ∆E’, and Ea’. ∆E = -30 kJ and Ea = 50 kJ


AP Chemistry -
Starter -
Balance and use the following information to find ∆H, ∆S, ∆G, and T.
C2H2 (g) + O2 (g) --> CO2 (g) + H2O (g)
∆H +226.7 kJ 0.0 kJ -393.5 kJ -241.8 kJ
S +0.2008 kJ/K +0.2050 kJ/K +0.2136 kJ/K +0.1887 kJ/K
∆G +209.2 kJ 0.0 kJ -394.4 kJ -228.6 kJ

Corrected 3.4 bookwork and worksheet 3.2 B and C

Redo 3.2 lab and did 3.3 lab READ YOUR LAB!!!

Homework: 3.5 bookwork (Kotz- on calendar) and 3.2 worksheet D

Summary - None today. No time. Finish labs next time. Turn in Starter.

Wednesday, Jan 26 B-day

Assembly - If you missed class I copied notes for you. Come in and get them.

Regular Chemistry and Honors -
Starter -
Given a 55.8 g Popsicle at -15 C is left out on a hot day and all evaporates away, how much energy did it take?

Addition for Honors - Also added this to starter. In a chemical magazine find and article and read it. Summarize it and tell how it involves chemistry. Then we talked about the term project and received the rubric for it. You will get time in class to work on it next time. To summarize the project. You and your lab partner are business partners 10-30 years in the future. You are making a new product that involves chemistry. You are advertising for a position in your plant that involves chemistry. One of you will make a 1/2 size poster to post in the 2300 hall to recruit for the job. The other will be creating a Google.doc to share with me at showell@dsdmail.net The person that creates the Google document, and if you so choose the other student will present to a group of potential employees a 2-4 minute summary. These will be due Feb 17.

Corrected: Assign 3.2

Lecture: Hess' Law, standard heats of formation. Free energy ∆G, Entropy ∆S, Gibbs Free Energy Equation

Hindenburg Video

Homework - Worksheet 3.3 on H, G and S

A site to help you with thermochemistry.

Summary -
1. What do each of the following with a triangle in front of mean ∆H, ∆G and ∆S.
2. What does a positive and negative on each mean?
3. How do you find them?

Student journal was handed in at the end of the period.

Monday, January 24, 2011

Tuesday, Jan 25 A-day

Regular Chemistry and Honors -
Starter -
Given a 55.8 g Popsicle at -15 C is left out on a hot day and all evaporates away, how much energy did it take?

Corrected: Assign 3.2

Lecture: Hess' Law, standard heats of formation. Free energy ∆G, Entropy ∆S, Gibbs Free Energy Equation

Hindenburg Video

Demo: Lycopodium powder

Homework - Worksheet 3.3 on H, G and S

A site to help you with thermochemistry.

Summary -
Summary -
1. What do each of the following with a triangle in front of mean ∆H, ∆G and ∆S.
2. What does a positive and negative on each mean?
3. How do you find them?

Student journal was handed in at the end of the period.


AP Chemistry -
Starter - Given the equation: NH3 (aq) + H2O (l) ↔ NH4+ (aq) + OH- (aq) Find the concentration of NH3 at equilibrium if the kb = 1.8 x 10^-5 and the pH is 10.5.

Finished the acid base power point.

Corrected 3.3 (worksheet) and (bookwork
)

Lab 3.2 We will redo this lab and 3.3 when I am back on Thursday. Make sure that you are ready! READ YOUR LAB!!! We will bumping the labs back a day.

Homework: 3.3 bookwork (Kotz- on calendar) and 3.2 worksheet B and C

Summary -
1. Write in your own words what went wrong with the lab last time.(What important step did almost every group not do?)
2. Summarize in outline form what you will be doing with lab 3.3.
Turned in Student Journal in test notebook.

Monday, Jan 24 B-day

Regular Chemistry and Honors -
Starter -
1. Given 575 J, 75 g, and a temperature change of 32 C. Find the Specific Heat. (answer - 0.24 J/(g*C)
2. List what things show heat transfer around your home.

Corrected: Assign 3.1

We finished the 3.1 power point.

3.2 Lab - Heat Curve investigation
(Honors -Make sure to label and include your computer generated graph!)
3.3 Lab - Heat of Fusion of Ice

Homework - Worksheet 3.2 on heat curves

Summary -
Draw and label a heat curve with what is happening at each step and with the equations used in each part.

Student journal was handed in at the end of the period.

Friday, January 21, 2011

Friday Jan 21 A-day

Regular Chemistry and Honors -
Starter -
1. Given 575 J, 75 g, and a temperature change of 32 C. Find the Specific Heat. (answer - 0.24 J/(g*C)
2. List what things show heat transfer around your home.

Corrected: Assign 3.1

We finished the 3.1 power point.

3.2 Lab - Heat Curve investigation
(Honors -Make sure to label and include your computer generated graph!)
3.3 Lab - Heat of Fusion of Ice

Homework - Worksheet 3.2 on heat curves

Summary -
Draw and label a heat curve with what is happening at each step and with the equations used in each part.

Student journal was handed in at the end of the period.

AP Chemistry -
Starter - Find the pH, pOH, [H+], [OH-]
1. pOH = 3.74
2. pH = 10.73
3. [H+] = 3.25 x 10^-5 M
4. [OH-] =8.32 x 10^-3 M

Finished the acid base power point.

Corrected 3.1 (worksheet) and 3.2 (bookwork
)

Lab 3.2

Homework: 3.2 bookwork (Kotz- on calendar) and 3.2 worksheet A

Summary - Summarize Lewis, Bronsted-Lowry, and Arrhenius definitions of acids and bases. Turned in Student Journal in test notebook.

Thursday, January 20, 2011

A-day Jan 20th Welcome to 3rd Term!

Regular Chemistry -
Today we started Thermochemistry. We started a Student Journal by folding a paper in 4ths and in the upper left hand corner we answered the starter question: What do you know about heat? At the end of class we summarized on the left upper 4th what we learned today about heat.
We did lab 3.1 Specific Heat.
We were assigned 3.1 assignment (answers are on the bottom!)

Honors Chemistry -
Today we started Thermochemistry.
We started a Student Journal by folding a paper in 4ths and in the upper left hand corner we answered the starter question: What do you know about heat? At the end of class we summarized on the left upper 4th what we learned today about heat.
We did lab 3.1 Specific Heat. Make sure to include your graph and a conclusion!
We were assigned 3.1 assignment (answers are on the bottom!)

Wednesday, January 19, 2011

Beginning 3rd term! Jan 19 A-day

Regular Chemistry -
Today we started Thermochemistry. We started a Student Journal by folding a paper in 4ths and in the upper left hand corner we answered the starter question: What do you know about heat? At the end of class we summarized on the left upper 4th what we learned today about heat.
We did lab 3.1 Specific Heat.
We were assigned 3.1 assignment (answers are on the bottom!)

Honors Chemistry -
Today we started Thermochemistry.
We started a Student Journal by folding a paper in 4ths and in the upper left hand corner we answered the starter question: What do you know about heat? At the end of class we summarized on the left upper 4th what we learned today about heat.
We did lab 3.1 Specific Heat. Make sure to include your graph and a conclusion!
We were assigned 3.1 assignment (answers are on the bottom!)

AP Chemistry-
We started a Student Journal by folding a paper in 4ths and in the upper left hand corner we answered the starter question: What do you know about Keq?
At the end of class we summarized on the left upper 4th what we learned today about acids and bases.
We started into acids and bases. Mrs. Howell summarized the important stuff and then we started acids and bases power point chapter 13. We didn't make it all the way through.
We did the lab 3.1. Our first titrations. We did them as groups. We had two groups do good titrations for HCl and NaOH and for acetic acid and NaOH. We will share the data with everyone.
Homework for tonight consists of a 3.1 worksheet and Kotz book work on the calendar
Make sure that you keep up!

Tuesday, January 11, 2011

Jan 13 and Jan14

Regular and Honors Chemistry -
Combined Chemistry Competition - Equation Equalizer!

AP Chemistry-
Correct Semester Test
More Keq's
Assigned 3.1

Tuesday &Wednesday Jan 11 &12

Regular and Honors Chemistry -
Corrected 2.16 and 2.17
Semester Test

AP Chemistry -
Corrected up through 2.17
Turned in Term project (Science Fair, Science Olympiad, or tutoring and lab)
Semester Final - Full Written Exam.

Friday, January 7, 2011

IMPORTANT AP CHEMISTRY!!!

The lab print outs are in my room on the second lab table. I have redone the Rate of Order of Reaction it is all on one graph on that table. Please pick it up before school on Monday.

Remember Lab Notebooks are due on Tuesday! NO LATE WORK!!!

Also here is a break down of your test for Tuesday.
Question 1 - Keq - Do the worksheets!
Question 2 - rate - Do the worksheet!
Question 3 - Thermodynamics - Review the worksheets!
Question 4 - Writing net ionic equations and answering questions about it
Question 5 - Lab question - Review your labs!
Question 6 - Complex ion and Geometry - Do the worksheets!

If you are struggling the keq check out this website.

Thursday, January 6, 2011

Jan7, 10, 2011

All late work and extra credit labs (in regular) due by this Friday Jan 7 by 3:00 pm.

Regular Chemistry -
We corrected 2.14 and 2.15.
Assigned 2.16 and 2.17.


Honors Chemistry -
We corrected 2.14 and 2.15
Assigned 2.16 and 2.17.

Lab notebook due next time.

AP Chemistry -
More Keq.
Corrected 2.16
Assigned 2.17

Lab notebook due next time.

Tuesday, January 4, 2011

Regular and Honors Important!!

Review Stoichiometry Worksheet A did not have the correct answers for all the problems on it. I have re-loaded it to the web site with the correct possible answers. Please check the web site...
Honors
Regular

Monday, January 3, 2011

Jan 5 and 6, 2011

Regular Chemistry -
We also were assigned 2.14 Semester Reivew and 2.15 Stoichiometry review II
Correct 2.13 Stoichiometry review I

Honors Chemistry -
Assignment: 2.14 Semester Reivew and 2.15 Stoichiometry review II
Correct 2.13 Stoichiometry review I

AP Chemistry -
Go through the chapter 12 power points

Assigned the 1st kinetics worksheet (2.16)

Remember to also be doing their complex ion worksheets (2.13 and 2.14).

The key to your rate assignment is in the correction book. Correct it and turn it into your file.

I am planning on being back to teach and do some labs (2.14 and 2.15)…however if I don’t make it, that is what you need to do.

Jan 3 and Jan 4, 2011

Regular Chemistry -
We did the oxidation of Steel wool lab today. We also were assigned 2.13 Stoichiometry review I

Honors Chemistry -
Lab: Oxidation of Steel Wool
Assignment: 2.13 Stoichiometry review I

AP Chemistry -
Today we started rates.
Power points and tutorial help on the power point page of AP Chemistry under chapter 11
Assignment: 2.15 Rates