Juniors - ACT at 7:30 am
Bring: 2 #2 pencils, calculator
Leave home phone or turn completely off
Honors and Regular - Help with gas laws noon till 1 pm.
AP Chemistry - 1 pm -2 pm Thermochemistry AP questions review.
Monday, February 28, 2011
Saturday, February 26, 2011
Fumitoxin...Check these links out!
Desert News Feb 24
Deseret News Feb 25
Standard Examiner Feb 25
This is on going news on the gas Fumitoxin and the Phosphine gas it releases.
Deseret News Feb 25
Standard Examiner Feb 25
This is on going news on the gas Fumitoxin and the Phosphine gas it releases.
Friday, February 25, 2011
Friday Feb 25 and Monday Feb 28
Regular and Honors Gas and Kinetics test next time!
Regular Chemistry -
Starter- Quiz on slide # of Kinetics and Gas Laws power point
Activity - Chem Think Gasses Tutorial and Question Set If you are not registered the code to register for the next 14 days is 6856-4745-9514
Lab: Average Molecular Mass of Air
Homework: 3.12 Combined gas Law and Charles Law
Summary - Quiz on end slide of Kinetics and Gas Laws power point
Honors Chemistry -
Lab Notebooks are due next time!!!
Starter- Quiz on slide # of Kinetics and Gas Laws power point
Activity - Chem Think Gasses Tutorial and Question Set If you are not registered the code to register for the next 14 days is 6856-4745-9514
Lab: Average Molecular Mass of Air
Homework: 3.12 Combined gas Law and Charles Law
Summary - Quiz on end slide of Kinetics and Gas Laws power point
AP Chemistry-
Starter- Balance the following equation in basic solution.
MnO4- + CN- --> MnO2 + CNO-
Lecture - Electrochemistry Best (Chapter 18). Up to slide 54.
Assignment 3.12
Lab: Start Cathodic protection lab
Summary - Electrochemistry quiz #1
Remember a good site if you need help on Balancing...Click here.
Regular Chemistry -
Starter- Quiz on slide # of Kinetics and Gas Laws power point
Activity - Chem Think Gasses Tutorial and Question Set If you are not registered the code to register for the next 14 days is 6856-4745-9514
Lab: Average Molecular Mass of Air
Homework: 3.12 Combined gas Law and Charles Law
Summary - Quiz on end slide of Kinetics and Gas Laws power point
Honors Chemistry -
Lab Notebooks are due next time!!!
Starter- Quiz on slide # of Kinetics and Gas Laws power point
Activity - Chem Think Gasses Tutorial and Question Set If you are not registered the code to register for the next 14 days is 6856-4745-9514
Lab: Average Molecular Mass of Air
Homework: 3.12 Combined gas Law and Charles Law
Summary - Quiz on end slide of Kinetics and Gas Laws power point
AP Chemistry-
Starter- Balance the following equation in basic solution.
MnO4- + CN- --> MnO2 + CNO-
Lecture - Electrochemistry Best (Chapter 18). Up to slide 54.
Assignment 3.12
Lab: Start Cathodic protection lab
Summary - Electrochemistry quiz #1
Remember a good site if you need help on Balancing...Click here.
Wednesday, February 23, 2011
Wed & Thurs Feb 23 & 24
Regular Chemistry -
Starter- Initially pressure of 1.5 atm, 300.1 L, 278 K is changed to 3.7 atm at 350. K what is the new volume?
Lab: Diffusion of Gasses and Molar Volume of An Unknown Gas
Homework: 3.11 Two More Laws and Magic Squares
Summary - Which gas moved faster in the Diffusion of Gasses lab?
Honors Chemistry -
Starter- Initially pressure of 1.5 atm, 300.1 L, 278 K is changed to 3.7 atm at 350. K what is the new volume?
Lab: Diffusion of Gasses and Molar Volume of a Gas
Homework: 3.11 Two More Laws and Magic Squares
Summary - Which gas moved faster in the Diffusion of Gasses lab?
AP Chemistry-
Starter- See Mrs. Howell 7 questions on Redox
Lecture - Electrochemistry Best (Chapter 18).
Assignment 3.11
Summary - Balance the following equation in basic solution.
S2-(aq) + I2 (s) --> SO4 2-(aq) + I-(aq)
Remember a good site if you need help on Balancing...Click here.
Starter- Initially pressure of 1.5 atm, 300.1 L, 278 K is changed to 3.7 atm at 350. K what is the new volume?
Lab: Diffusion of Gasses and Molar Volume of An Unknown Gas
Homework: 3.11 Two More Laws and Magic Squares
Summary - Which gas moved faster in the Diffusion of Gasses lab?
Honors Chemistry -
Starter- Initially pressure of 1.5 atm, 300.1 L, 278 K is changed to 3.7 atm at 350. K what is the new volume?
Lab: Diffusion of Gasses and Molar Volume of a Gas
Homework: 3.11 Two More Laws and Magic Squares
Summary - Which gas moved faster in the Diffusion of Gasses lab?
AP Chemistry-
Starter- See Mrs. Howell 7 questions on Redox
Lecture - Electrochemistry Best (Chapter 18).
Assignment 3.11
Summary - Balance the following equation in basic solution.
S2-(aq) + I2 (s) --> SO4 2-(aq) + I-(aq)
Remember a good site if you need help on Balancing...Click here.
Friday, February 18, 2011
Friday, Feb 18 and Tuesday, Feb 22
Regular Chemistry -
Starter- On the first of the power point Gas Laws and Kinetics
Activity: "playing" and exploring with balloons, marshmallows and syringes.
Homework: 3.10 Ideal and Combined Gas Law Worksheet 1
Summary - Question #1 on the slide show after PTV.
Honors Chemistry -
Starter- On the first of the power point Gas Laws and Kinetics
Activity: "playing" and exploring with balloons, marshmallows and syringes.
Lab: Exploring Boyles Law
Homework: 3.10 Ideal and Combined Gas Laws We will correct 3.7 next time also.
Summary - Question #1 on the slide show after PTV.
AP Chemistry-
Starter- 2003 Exam B Question 1 See Mrs. Howell
Lecture - Thermochemistry (chapter 17) and start of Redox and Electrochemistry (Chapter 18).
Turn in aspirin lab write up.
Summary - None today.
Assignment 3.10
Starter- On the first of the power point Gas Laws and Kinetics
Activity: "playing" and exploring with balloons, marshmallows and syringes.
Homework: 3.10 Ideal and Combined Gas Law Worksheet 1
Summary - Question #1 on the slide show after PTV.
Honors Chemistry -
Starter- On the first of the power point Gas Laws and Kinetics
Activity: "playing" and exploring with balloons, marshmallows and syringes.
Lab: Exploring Boyles Law
Homework: 3.10 Ideal and Combined Gas Laws We will correct 3.7 next time also.
Summary - Question #1 on the slide show after PTV.
AP Chemistry-
Starter- 2003 Exam B Question 1 See Mrs. Howell
Lecture - Thermochemistry (chapter 17) and start of Redox and Electrochemistry (Chapter 18).
Turn in aspirin lab write up.
Summary - None today.
Assignment 3.10
Thursday, February 17, 2011
Feb 16 &17 Wednesday and Thursday
Regular and Honors Chemistry-
Correct Review Assignment
Take Thermo Test
Present term projects
AP Chemistry -
Correct Mid term test
shirt ideas due
Lab test - titration of aspirin
Correct Review Assignment
Take Thermo Test
Present term projects
AP Chemistry -
Correct Mid term test
shirt ideas due
Lab test - titration of aspirin
Feb 15 Tuesday
Honors and Regular - Feb 16 and Feb 17.
Thermo Test
Due: Term Projects and Lab notebook (honors).
Regular Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review 1
Summary -None
Honors Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review We will correct 3.7 next time also.
Summary - None
Thermo Test
Due: Term Projects and Lab notebook (honors).
Regular Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review 1
Summary -None
Honors Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review We will correct 3.7 next time also.
Summary - None
Monday, February 14, 2011
Monday, Feb 14 A-day
Honors and Regular - Feb 16 and Feb 17.
Thermo Test
Due: Term Projects and Lab notebook (honors).
Parent Teacher Conference Feb 14, Monday 3-7pm
Regular Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review 1
Summary - Draw a heat curve for water and label each part with the equations used at each part. Then determine how much energy is released when 102.5 g of water at 79.0 oC is frozen and lowered to -20.1 oC. Cp ice = 2.06 J/(goC) Hfus = 333J/g
Honors Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review We will correct 3.7 next time also.
Summary - Draw a heat curve for water and label each part with the equations used at each part. Then determine how much energy is released when 102.5 g of water at 79.0 oC is frozen and lowered to -20.1 oC. Cp ice = 2.06 J/(goC) Hfus = 333J/g
AP Chemistry-
Full Free-Response Test
Mid -Term Test Today. Yes, I know...Happy Valentine's Day.
Due -Lab notebooks
Next time - Have the aspirin lab written up and ready to go. This is a lab test.
Thermo Test
Due: Term Projects and Lab notebook (honors).
Parent Teacher Conference Feb 14, Monday 3-7pm
Regular Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review 1
Summary - Draw a heat curve for water and label each part with the equations used at each part. Then determine how much energy is released when 102.5 g of water at 79.0 oC is frozen and lowered to -20.1 oC. Cp ice = 2.06 J/(goC) Hfus = 333J/g
Honors Chemistry -
Starter- Draw and label completely an activation curve with Ea= 60kJ and delta E forward = 20 kJ. Given Ea' and delta E reverse.
Lab: 3.7 The Heat Content of Nuts and Snack Foods
Homework: 3.9 Review We will correct 3.7 next time also.
Summary - Draw a heat curve for water and label each part with the equations used at each part. Then determine how much energy is released when 102.5 g of water at 79.0 oC is frozen and lowered to -20.1 oC. Cp ice = 2.06 J/(goC) Hfus = 333J/g
AP Chemistry-
Full Free-Response Test
Mid -Term Test Today. Yes, I know...Happy Valentine's Day.
Due -Lab notebooks
Next time - Have the aspirin lab written up and ready to go. This is a lab test.
Friday, February 11, 2011
Friday, Feb 11 B-day
Honors and Regular - Thermo Test will be Feb 16 and Feb 17. Also due this day are Term Projects and Lab notebook (honors).Parent Teacher Conference Feb 14, Monday 3-7pm
Regular Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State 1
Summary - Also on the new starter paper.
Honors Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State We will correct 3.7 next time also.
Summary - Also on the new starter paper.
Regular Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State 1
Summary - Also on the new starter paper.
Honors Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State We will correct 3.7 next time also.
Summary - Also on the new starter paper.
AP Chemsitry - Midterm help
#1 - Kb, buffer
#2 - rate
#3 - mole, limiting reagent, molar concentration, solubility rules
#4 - equations
#5 - Lab - unidentified unknowns - solubility rules, colors...
#6 - Thermo enthalpy, entropy, free energy, Le Chatliers principle,Keq
Study!!!!
#2 - rate
#3 - mole, limiting reagent, molar concentration, solubility rules
#4 - equations
#5 - Lab - unidentified unknowns - solubility rules, colors...
#6 - Thermo enthalpy, entropy, free energy, Le Chatliers principle,Keq
Study!!!!
Thursday, February 10, 2011
Thursday, Feb 10 A-day
Honors and Regular - Thermo Test will be Feb 16 and Feb 17. Also due this day are Term Projects and Lab notebook (honors).Parent Teacher Conference Feb 14, Monday 3-7pm
Regular Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State 1
Summary - Also on the new starter paper.
Honors Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State We will correct 3.7 next time also.
Summary - Also on the new starter paper.
AP Chemistry-
Starter - Ka problem
Starter 2.10 AP Question: 2000 Free-Response 1
2H2S (g)↔2H2(g) + S2(g)
When heated, hydrogen sulfide gas decomposes according to the equation above.
A 3.40 g sample of H2S(g) is introduced into an evacuated rigid 1.25 L container. The sealed container is heated to 483 K, and 3.72 × 10-2 mol of S2(g) is present at equilibrium.
(a) Write the expression for the equilibrium constant, Kc, for the decomposition
reaction represented above.
(b) Calculate the equilibrium concentration, in mol L-1, of the following gases in the container at 483 K.
(i) H2(g)
(ii) H2S(g)
(c) Calculate the value of the equilibrium constant, Kc, for the decomposition reaction at 483 K.
(d) Calculate the partial pressure of S2(g) in the container at equilibrium at 483 K.
(e) For the reaction H2(g) + 1/2S2(g) ↔ H2S(g) at 483 K, calculate the value of the
equilibrium constant, Kc.
Lecture: Ksp
Lab: 3.6 Ksp Make sure to print out and read through and be ready to do lab 3.6 on Ksp.
Correct: 3.9
Homework: 3.9
Summary: 2.10 Summary:
Sample AP Question: 1977 Question 6
For the system
2SO2 (g) + O2 (g) <--> 2SO3 (g)
ΔH is negative for the production of SO3. Assume that one has an equilibrium mixture of these substances. Predict the effect of each of the following changes on the value of the equilibrium constant and on the number of moles of SO3 present in the mixture at equilibrium. Briefly account for each of your predictions. (Assume that in each case all other factors remain constant.)
(a) Decreasing the volume of the system.
(b) Adding oxygen to the equilibrium mixture.
(c) Raising the temperature of the system.
Term Test is Feb 14. Yes, I know...Happy Valentine's Day. Lab notebooks will be due that day! Test Next Time - Written portion only. Be prepared! Generally the same kinds of questions as last time.
Regular Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State 1
Summary - Also on the new starter paper.
Honors Chemistry -
Starter- Pick up new starter sheet in class.
Lab: 3.6 Equilibrium
Homework: 3.8 Change of State We will correct 3.7 next time also.
Summary - Also on the new starter paper.
AP Chemistry-
Starter - Ka problem
Starter 2.10 AP Question: 2000 Free-Response 1
2H2S (g)↔2H2(g) + S2(g)
When heated, hydrogen sulfide gas decomposes according to the equation above.
A 3.40 g sample of H2S(g) is introduced into an evacuated rigid 1.25 L container. The sealed container is heated to 483 K, and 3.72 × 10-2 mol of S2(g) is present at equilibrium.
(a) Write the expression for the equilibrium constant, Kc, for the decomposition
reaction represented above.
(b) Calculate the equilibrium concentration, in mol L-1, of the following gases in the container at 483 K.
(i) H2(g)
(ii) H2S(g)
(c) Calculate the value of the equilibrium constant, Kc, for the decomposition reaction at 483 K.
(d) Calculate the partial pressure of S2(g) in the container at equilibrium at 483 K.
(e) For the reaction H2(g) + 1/2S2(g) ↔ H2S(g) at 483 K, calculate the value of the
equilibrium constant, Kc.
Lecture: Ksp
Lab: 3.6 Ksp Make sure to print out and read through and be ready to do lab 3.6 on Ksp.
Correct: 3.9
Homework: 3.9
Summary: 2.10 Summary:
Sample AP Question: 1977 Question 6
For the system
2SO2 (g) + O2 (g) <--> 2SO3 (g)
ΔH is negative for the production of SO3. Assume that one has an equilibrium mixture of these substances. Predict the effect of each of the following changes on the value of the equilibrium constant and on the number of moles of SO3 present in the mixture at equilibrium. Briefly account for each of your predictions. (Assume that in each case all other factors remain constant.)
(a) Decreasing the volume of the system.
(b) Adding oxygen to the equilibrium mixture.
(c) Raising the temperature of the system.
Term Test is Feb 14. Yes, I know...Happy Valentine's Day. Lab notebooks will be due that day! Test Next Time - Written portion only. Be prepared! Generally the same kinds of questions as last time.
Wednesday, February 9, 2011
Wednesday, Feb 9 B-day
Honors and Regular - Thermo Test will be Feb 16 and Feb 17. Also due this day are Term Projects and Lab notebook (honors).
Regular Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
Honors Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
4. Convert 7.56 x 10^25 molecules CaF2 to grams
5. Convert 35.472 g of (NH4)2CO3 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
Regular Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
Honors Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
4. Convert 7.56 x 10^25 molecules CaF2 to grams
5. Convert 35.472 g of (NH4)2CO3 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
Tuesday, February 8, 2011
Feb 8 Tuesday A-day
Honors and Regular - Thermo Test will be Feb 16 and Feb 17. Also due this day are Term Projects and Lab notebook (honors).
Regular Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
Honors Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
4. Convert 7.56 x 10^25 molecules CaF2 to grams
5. Convert 35.472 g of (NH4)2CO3 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
AP Chemistry-
Starter - Draw and completely label (Ea, Ea', delta E forward, delta E backward, reactant and product) on an activation curve that has Ea= 50 kJ and delta E forward = -30 kJ. Find the values for Ea' and delta E backward.
Lecture: Ksp
Lab: 3.5 Buffers Make sure to print out and read through and be ready to do lab 3.6 on Ksp.
Correct: 3.8
Homework: 3.9
Term Test is Feb 14. Lab notebooks will be due that day!
Regular Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
Honors Chemistry -
Starter-
1. Find the formula mass of Pb3N2.
2. Convert 3.24 g of BaCl2 to moles
3. Convert 45.6 moles of LiMnO4 to grams
4. Convert 7.56 x 10^25 molecules CaF2 to grams
5. Convert 35.472 g of (NH4)2CO3 to grams
Lecture: Phase Diagrams last of power point #4 for 3rd term.
Lab: 3.5 Combustion of a Candle lab
Homework: 3.7 Phase Diagram We will correct 3.6 next time also.
Last 20 minutes of class we went and saw a hands on exhibit that the University of Utah Engineering classes brought. It was fun to operate robots, bugs, lasers, computer programs and many other things! Thanks U of U!
AP Chemistry-
Starter - Draw and completely label (Ea, Ea', delta E forward, delta E backward, reactant and product) on an activation curve that has Ea= 50 kJ and delta E forward = -30 kJ. Find the values for Ea' and delta E backward.
Lecture: Ksp
Lab: 3.5 Buffers Make sure to print out and read through and be ready to do lab 3.6 on Ksp.
Correct: 3.8
Homework: 3.9
Term Test is Feb 14. Lab notebooks will be due that day!
Monday, February 7, 2011
Monday, Feb7
Regular and Honors Chemistry -
Starter -Using the following standard enthalpies of formation (∆Hf) determine the change in enthalpy(∆H) for the reaction...
2H2S (g) + 3 O2 (g) --> 2 H2O (l) + 2 SO2 (g)
∆Hf of H2S (g) = -20.1 kJ/mole
∆Hf of O2 (g) = 0.0 kJ/mole
∆Hf of H2O (l) -241.8 kJ/mole
∆Hf of SO2 (g))= -296.1 kJ/mole
Corrected 3.5 Worksheet Hess' Law
Lecture: We went through the power point #4 in third term. We talked about activation curves, phase diagrams, and Le Chatlier's Principle.
Homework: 3.7 Phase Diagrams
Summary: Given ∆H = +345kJ T= 350 K and ∆S = +0.183kJ/K Find ∆G =
Then tell what the ∆G, ∆H, and ∆S mean.
Starter -Using the following standard enthalpies of formation (∆Hf) determine the change in enthalpy(∆H) for the reaction...
2H2S (g) + 3 O2 (g) --> 2 H2O (l) + 2 SO2 (g)
∆Hf of H2S (g) = -20.1 kJ/mole
∆Hf of O2 (g) = 0.0 kJ/mole
∆Hf of H2O (l) -241.8 kJ/mole
∆Hf of SO2 (g))= -296.1 kJ/mole
Corrected 3.5 Worksheet Hess' Law
Lecture: We went through the power point #4 in third term. We talked about activation curves, phase diagrams, and Le Chatlier's Principle.
Homework: 3.7 Phase Diagrams
Summary: Given ∆H = +345kJ T= 350 K and ∆S = +0.183kJ/K Find ∆G =
Then tell what the ∆G, ∆H, and ∆S mean.
Thursday, February 3, 2011
Friday Feb 4, 2001
Regular and Honors Chemistry -
Starter:
Using the following standard enthaplies of formation determine the change in enthalpy for the reaction...
2H2S (g) + 3 O2 (g) --> 2 H2O (l) + 2 SO2 (g)
H2S (g)= -20.1 kJ/mole
O2 (g) = 0.0 kJ/mole
H2O (l)= -241.8 kJ/mole
SO2 (g)= -296.1 kJ/mole
Corrected 3.5 Worksheet Hess' Law
Work Day on Term Project!
Summary:
Given enthalpy = +345 kJ T= 350 K and entropy = +0.183 kJ/K Find "Gibbs" free energy and then tell what each number means.
Homework: 3.6 Heat Exchange problems next time
AP Chemistry-
Starter -
AP Review Starter 2.4
A - Remember to attach the correct units!
B- Use the correct # of significant figures!
C - SHOW ALL WORK FOR FULL CREDIT !!!
1 Find the Formula Mass of Pb3N2
2 Convert 3.24 g of BaCl2 to moles
3 Convert 45.6 moles of LiMnO4 to grams
4 Convert 7.56 x 10^25 molecules CaF2 to grams
5 Convert 35.472 g of (NH4)2CO3 to molecules
Work Day - ALL LATE WORK IS DUE TODAY! EVERYTHING NEEDS TO BE CORRECTED AND TURNED IN! I WILL NOT ACCEPT LATE WORK FOR CREDIT AFTER TODAY. I WILL BE FOLLOWING THE DISCLOSURE. LATE 1/2 OFF FOR 1 WEEK THEN 0.
Homework - 3.8 bookwork
Also get Lab 3.5 Buffers ready to do.
Summary -
AP Review Summary 2.4
A - Remember to attach the correct units!
B - Use the correct # of significant figures!
C - SHOW ALL WORK FOR FULL CREDIT !!!
1 Given 13.542 moles of Kr at STP what is the volume that this gas will occupy?
2 What is the percent composition for each element in
Al(ClO4)3 ?
3 Nylon, contains 61.2 % carbon, 14.2 % hydrogen, and 24.6 % nitrogen. It has a molecular mass of about 465. What are its empirical and molecular formulas?
4 Find the formula for the hydrate that has 54.5 % AlK(SO4)2 and 45.5% H2O
5 What is the empirical formula for C14H16N4?
Starter:
Using the following standard enthaplies of formation determine the change in enthalpy for the reaction...
2H2S (g) + 3 O2 (g) --> 2 H2O (l) + 2 SO2 (g)
H2S (g)= -20.1 kJ/mole
O2 (g) = 0.0 kJ/mole
H2O (l)= -241.8 kJ/mole
SO2 (g)= -296.1 kJ/mole
Corrected 3.5 Worksheet Hess' Law
Work Day on Term Project!
Summary:
Given enthalpy = +345 kJ T= 350 K and entropy = +0.183 kJ/K Find "Gibbs" free energy and then tell what each number means.
Homework: 3.6 Heat Exchange problems next time
AP Chemistry-
Starter -
AP Review Starter 2.4
A - Remember to attach the correct units!
B- Use the correct # of significant figures!
C - SHOW ALL WORK FOR FULL CREDIT !!!
1 Find the Formula Mass of Pb3N2
2 Convert 3.24 g of BaCl2 to moles
3 Convert 45.6 moles of LiMnO4 to grams
4 Convert 7.56 x 10^25 molecules CaF2 to grams
5 Convert 35.472 g of (NH4)2CO3 to molecules
Work Day - ALL LATE WORK IS DUE TODAY! EVERYTHING NEEDS TO BE CORRECTED AND TURNED IN! I WILL NOT ACCEPT LATE WORK FOR CREDIT AFTER TODAY. I WILL BE FOLLOWING THE DISCLOSURE. LATE 1/2 OFF FOR 1 WEEK THEN 0.
Homework - 3.8 bookwork
Also get Lab 3.5 Buffers ready to do.
Summary -
AP Review Summary 2.4
A - Remember to attach the correct units!
B - Use the correct # of significant figures!
C - SHOW ALL WORK FOR FULL CREDIT !!!
1 Given 13.542 moles of Kr at STP what is the volume that this gas will occupy?
2 What is the percent composition for each element in
Al(ClO4)3 ?
3 Nylon, contains 61.2 % carbon, 14.2 % hydrogen, and 24.6 % nitrogen. It has a molecular mass of about 465. What are its empirical and molecular formulas?
4 Find the formula for the hydrate that has 54.5 % AlK(SO4)2 and 45.5% H2O
5 What is the empirical formula for C14H16N4?
ATTENTION ALL CLASSES!
ALL LATE WORK IS DUE TODAY!
EVERYTHING NEEDS TO BE CORRECTED AND TURNED IN!
I WILL NOT ACCEPT LATE WORK FOR CREDIT AFTER TODAY.
I WILL BE FOLLOWING THE DISCLOSURE.
LATE 1/2 OFF FOR 1 WEEK THEN 0.
EVERYTHING NEEDS TO BE CORRECTED AND TURNED IN!
I WILL NOT ACCEPT LATE WORK FOR CREDIT AFTER TODAY.
I WILL BE FOLLOWING THE DISCLOSURE.
LATE 1/2 OFF FOR 1 WEEK THEN 0.
Wednesday, February 2, 2011
Wedndesday and Thursday Feb 2 and 3
Regular Chemistry -
Starter:
Find out how much energy is needed to heat ice from -15 oC to 145oC mass of 30.0 g.
Corrected 3.4 Worksheet
Lab: lab 3.4 Factors that Effect Reaction Rates We were able to do the reactions today! Fun!
Summary:
A-day Draw and completely label an activation curve that has a Ea = 50 kJ and ∆Eforward = -30 kJ. Find Ea’ and ∆Ebackward.
B-day
1. What does positive and negative enthalpy, entropy, and "Gibbs" free energy mean?
2. What is the equation that ties all of the things listed in number one together?
Homework: 3.5 Hess Law Due next time
Honors Chemistry -
Starter:
Find out how much energy is needed to heat ice from -15 oC to 145oC mass of 30.0 g.
Corrected 3.4 worksheet
Lab: lab 3.4 Factors that Effect Reaction Rates We were able to do the reactions!
Summary:
A-day Draw and completely label an activation curve that has a Ea = 50 kJ and ∆Eforward = -30 kJ. Find Ea’ and ∆Ebackward.
B-day
1. What does positive and negative enthalpy, entropy, and "Gibbs" free energy mean?
2. What is the equation that ties all of the things listed in number one together?
Homework: 3.5 Hess' Law Worksheet
AP Chemistry-
Starter -
Lab Questions for diprotic titration
1. What are the 5 possible diprotic acids?
2. What does diprotic mean?
3. Explain how you should make up 200 mL of 0.1 M NaOH.
4. How much of the diprotic acid needs to be obtained for each titration?
5. When you reach pH = 3.5 and pH = 7.5 what do you reduce the amount added to?
Lecture - Buffers (There is a power point chapter 14) I just worked through some problems.
Labs - 3.4
Homework - 3.7 bookwork
Also get Lab 3.5 ready to do.
Everything up to and including 3.7 should be done, corrected, and turned in by this Friday!
Starter:
Find out how much energy is needed to heat ice from -15 oC to 145oC mass of 30.0 g.
Corrected 3.4 Worksheet
Lab: lab 3.4 Factors that Effect Reaction Rates We were able to do the reactions today! Fun!
Summary:
A-day Draw and completely label an activation curve that has a Ea = 50 kJ and ∆Eforward = -30 kJ. Find Ea’ and ∆Ebackward.
B-day
1. What does positive and negative enthalpy, entropy, and "Gibbs" free energy mean?
2. What is the equation that ties all of the things listed in number one together?
Homework: 3.5 Hess Law Due next time
Honors Chemistry -
Starter:
Find out how much energy is needed to heat ice from -15 oC to 145oC mass of 30.0 g.
Corrected 3.4 worksheet
Lab: lab 3.4 Factors that Effect Reaction Rates We were able to do the reactions!
Summary:
A-day Draw and completely label an activation curve that has a Ea = 50 kJ and ∆Eforward = -30 kJ. Find Ea’ and ∆Ebackward.
B-day
1. What does positive and negative enthalpy, entropy, and "Gibbs" free energy mean?
2. What is the equation that ties all of the things listed in number one together?
Homework: 3.5 Hess' Law Worksheet
AP Chemistry-
Starter -
Lab Questions for diprotic titration
1. What are the 5 possible diprotic acids?
2. What does diprotic mean?
3. Explain how you should make up 200 mL of 0.1 M NaOH.
4. How much of the diprotic acid needs to be obtained for each titration?
5. When you reach pH = 3.5 and pH = 7.5 what do you reduce the amount added to?
Lecture - Buffers (There is a power point chapter 14) I just worked through some problems.
Labs - 3.4
Homework - 3.7 bookwork
Also get Lab 3.5 ready to do.
Everything up to and including 3.7 should be done, corrected, and turned in by this Friday!
Tuesday, February 1, 2011
A-day
You will have till Friday to finish the Hess' Law Worksheet. Just make sure to have your lab ready to go.
Tuesday Feb 1
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 (Extra Credit- Due by 2/17)
Re-introduced to our term project. Showed the website link for it. 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: We gave the three things we are experimenting with in our new lab and what reactions we chose to use.
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 (Extra Credit- Due by 2/17)
Re-introduced to our term project. Showed the website link for it. 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: We gave the three things we are experimenting with in our new lab and what reactions we chose to use.
Homework: 3.5 Hess' Law Worksheet
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 (Extra Credit- Due by 2/17)
Re-introduced to our term project. Showed the website link for it. 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: We gave the three things we are experimenting with in our new lab and what reactions we chose to use.
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 (Extra Credit- Due by 2/17)
Re-introduced to our term project. Showed the website link for it. 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: We gave the three things we are experimenting with in our new lab and what reactions we chose to use.
Homework: 3.5 Hess' Law Worksheet