In- 8/25/15, Warm-Up Write about your goals. Where do you see yourself in 10 years from now? What are you going to need to do in order to reach your goal? How is AP chemistry going to help you achieve your long term goals? What would you like to get out of this class? HomeworkWork on Ch. 1 & 2 notes Quiz Friday Get safety contracts signed Through- Classwork Go over syllabus and course information Lab drawers Out- Reflection None In- 8/26/15 Warm-Up Why did you decide to take AP Chemistry? What are you most excited to learn more about? What was your favorite part of the chemistry class you took previously? What are you hoping to get out of this course? HomeworkQuiz Friday Out- Reflection None Through- Classwork Go over questions from chapters 1-2 notes and practice problems In- 8/27/15, Warm-Up What do you know remember about stoichiometry? What is it? How is it used? Give an example of what a stoichiometry question might look like. HomeworkQuiz tomorrow Stoichiometry Notes Out- Reflection None Through- Classwork Stoichiometry notes In- 8/28/15, Warm-Up Nomenclature Quiz HomeworkStoichiometry notes Through- Classwork Stoichiometry notes Out- Reflection None In- 8/31/15 Warm-Up A 3.4 gram sample of aluminum is mixed with 6.1 grams of chlorine gas making aluminum chloride. What is the theoretical yield of aluminum chloride? HomeworkLab write up due 9/8 through Google classroom Through- Classwork Go over lab write up requirements Start lab Out- Reflection None In- 9/1/15, Warm-Up None- Start working on your lab HomeworkLab write up due 9/8/15 Through- Classwork Lab day Out- Reflection None In- 9/2/15, Warm-Up Pretend you are the teacher or the writer of the AP Chemistry test. Write 3 different types of questions that you would include on the AP Chemistry test having to do with stoichiometry. One should have to do with the lab you just completed. Reflection- None HomeworkLab write up due 9/8/15 Through- Classwork Free Response Stoichiometry Questions In- 9/3/15, Warm-Up Go over necessary problem from yesterday HomeworkLab write up due Tuesday Through- Classwork Stoichiometry Free Response Questions Out- Reflection None In- 9/9/13 Warm-Up You were to complete your stoichiometry notes over the weekend. Explain the following terms: HomeworkRead Chapter 3 Lab write up due Wednesday Stoichiometry Test next Monday Limiting Reactant Through- Classwork Theoretical Yield Go over lab calculations Actual Yield Work on Stoichiometry AP Packet % Yield Out- Reflection None In- 9/10/13, Warm-Up A 3.4 gram sample of aluminum is mixed with 6.1 grams of chlorine gas making aluminum chloride. What is the theoretical yield of aluminum chloride? Homework- Lab Write up due Wednesday Test next Monday Through- Classwork Work on AP Stoich problems In- 9/11/13 Warm up Homework1. Explain the difference between Test Monday the empirical and molecular Through- Classwork formula for a compound. Work on AP Stoich 2. A compound has the molecular problems formula of CH2O and has been found to have a molar mass of 360 g/mol. What is the empirical formula? How do you know? In- 9/12/13, Warm-Up Please read through the lab you got as you walked in. You are responsible for coming up with a procedure today. Write down any ideas you have on how to complete this lab. HomeworkTest Monday ThroughEmpirical Formula Lab In- 9/13/13, Warm-Up None HomeworkTest Monday Lab write up due Thursday Through- Classwork MC quiz Stoichiometry problem In- 9/17/13, Warm-Up How are you feeling about the AP test you took yesterday? What did you think was the hardest part? Be specific (don’t say everything). What part did you find the easiest? Out- Reflection HomeworkCopper sulfate lab due Monday Through- Classwork Go over Stoichiometry test Go over lab report format In- 9/18/13 Warm-Up Write down anything you remember about the types of reactions. HomeworkLab write up due Monday Through- Classwork Review solutions Review types of reactions and net ionic equations In- 9/19/13, Warm-Up Write out the reactants and products for each reaction and identify which type of reaction is occuring. HomeworkLab write up due Monday Through- Classwork Review of net ionic equations 1. Magnesium carbonate is heated. Talk about acid-base 2. Ethane (2 carbons) reactions combusts in air. 3. Aluminum reacts with Copper (II) chloride. In- 9/20/13, Warm-Up Write out the following equations. Use net ionic form if applicable. 1. Sodium hydroxide reacts with sulfuric acid. 2. Solid calcium metal is combined with fluorine gas. 3. Lead (II) nitrate reacts with potassium iodide. ReflectionNone Homework: Lab write up due Monday P. 158 problems 4.494.52 Through- Classwork Acid Base Reactions Introduce oxidationreduction reactions and oxidation numbers In- 9/23/13, Warm-Up Homework: Which of the reactions below P. 884 20.19- 20.22 are redox reactions? For each redox reaction identify the element undergoing oxidation and reduction. 4 NH3 + 5O2 → 4 NO + 6 H2O 2 NO + O2 → 2 NO2 ReflectionNone Through- Classwork Electrochemistry skeleton notes In- 9/25/13 Warm-Up Balance the following redox equations. Make sure all elements and the charge are balanced. 1. Mo3+ → Mo 2. O2 → H2O 3. Cr(OH)3 → CrO424. NO2- + Cr2O72- → Cr3+ + NO3- Homework: Read chapter 20 P. 843851 Through- Classwork Redox Reactions and balancing notes and practice Learning Objective Students will balance redox reactions using the half reaction method and use this information to identify oxidation and reduction half reactions in an equation. In- 9/26/13, Warm-Up No Warm Up Homework: Redox titration lab write up due next Thursday Read p. 851-854 in book ReflectionNone Through- Classwork Redox Titration Lab In- 9/30/13, Warm-Up Using your skeleton notes, describe a voltaic cell. Draw a picture of what it looks like with labels. ReflectionNone HomeworkRedox Titration lab write up due Friday Read pg. 855-861 Through- Classwork Notes on Voltaic cells and EMF Practice with drawing voltaic cells and calculating EMF In- 10/1/13, Warm-Up 1. What is Ecell? 2. How is Ecell calculated? 3. Given the following information, determine which half reaction occurs at the anode and cathode and find the standard cell potential. Cd2+ + 2e- → Cd E= .403 V Sn2+ + 2e- → Sn E= .136 V Homework Lab write up due Friday Through- Classwork Notes on Gibbs Free Energy calculations In- 10/2/13 Warm-Up Homework Use the given information to Lab write up due calculate ∆G for the reaction Friday below. 4Ag (s) + O2 (g) + 4H+ (aq) → 4 Ag+ + 2H2O (l) Through- Classwork Nernst Equation and non standard conditions In- 10/3/13, Warm-Up We talked the very first day about how voltaic and electrolytic cells are different. Name as many differences as you can. Out- Reflection None Homework Lab write up due Friday Through- Classwork Electrolytic cell notes and practice problems. In- 10/4/13 Warm-Up We have talked about a lot in the electrochemistry unit. Summarize in complete sentences what you have learned so far. Homework Test Oct. 16th Through- Classwork Electrochemistry practice problemsdue in class. ReflectionNone In- 10/8/13 Warm-Up Look at the equations below and draw a picture of what is going on at the molecular level. H2O(l) → H2O (g) NaCl (s) → Na+ (aq) + Cl- (aq) Homework Test Oct. 16th Through- Classwork Electrochemistry Practice Problems In- 10/9/13, Warm-Up Which of the following mathematical relationships is represented by eadh letter in the diagram above? A) ∆ G = - nFE B) ∆ G = -RTlnK C) Eo cell = 0.0592V/n (log K) D) Eo cell = Eo red + Eo ox HomeworkTest on Wednesday Through- Classwork Practice Problems on Electrochem In- 10/10/13, Warm-Up None Homework Test Wednesday Study Session Tuesday 7:30-9:30 Lab write up due next Thursday Through- Classwork Determination of an Electrochemical Series Lab In- 10/11/13, Warm UpA Cr3+ (aq) solution is electrolyzed, using a current of 7.60 A. What mass of Cr (s) is plated out after 2.00 days? HomeworkTest Wednesday Study Session Tuesday 7:30-9:30 Lab write up due Thursday Through- Classwork MC Quiz Go over Electrolytic cells Lab Clarification In- 10/17/13, Warm-Up None HomeworkNone Through- Classwork Go over Electrochemistry test In- 10/18/13, Warm-Up Our next unit is Thermochemistry which is the study of how heat and energy play a part in chemical reactions. Write down 5 things you know about heat, energy, or a topic you think might be related. If you don’t know anything, write down 5 questions you have. Out- Reflection None HomeworkRead Chapter 5- focus on sections 5.3-5.7 Through- Classwork Introduction to thermochemistry with video clips and skeleton notes. In- 10/21/13 Warm-Up 1. Draw two labeled energy diagrams showing an endothermic reaction and an exothermic reaction. 2. q= +42 kJ, w= -11 kJ q= -32 kJ, w= +79 kJ Which has work done on the system (by the surroundings)? Explain. Determine whether or not each system is endothermic or exothermic 3. What is the difference between heat (q) and enthalpy (∆H)? Homework Read chapter 5.3-5.7 Through- Classwork Finish skeleton notes Work on Hess’ Law problems In- 11/22/13, Warm-Up None HomeworkNone Through- Classwork Hand warmer challenge lab In- 10/23/13, Warm-Up None Homework Test 10/31 Through- Classwork Handwarmer challenge lab In- 10/24/13, Warm-Up Calculate the enthalpy for the reaction below. 2Al(s) + Cr2O3(s) → Al2O3(s) + Cr(s) Cr2O3 ∆H = -1128 kJ/mol Al2O3 ∆H = - 1669.8 kJ/mol HomeworkTest next Thursday Lab write up due Nov. 4th Through- Classwork Thermo notes In- 10/25/13 Warm-Up Calculate the enthalpy change for the reaction: P4O6(s) + 2O2(g)→ P4O10(s) Given the following enthalpies of reaction: HomeworkLab write up due November 4th Test Oct. 31st P4(s) + 3O2(g) → P4O6(s) ∆H = -1640.1 kJ Through- Classwork P4(s) + 5O2(g) → P4O10(s) ∆H = -2940.1 kJ Finish Thermo notes Thermo practice problems Out-Reflection None In- 10/28/13, Warm-Up None Homework- Out-Reflection None Through- Classwork Work on thermo problems In- 10/29/13 Warm-Up 1. What are the thermodynamically favorable conditions for enthalpy, entropy, and Gibbs free energy? 2. The word spontaneous tells you about entropy, enthalpy, or free energy? 3. The words exothermic and endothermic tell you about entropy, enthalpy, or free energy? Homework: Lab write up due Monday Thermo test Thursday Through- Classwork Work thermo problems In- 10/30/13 Warm-Up 2NH3 (g) → N2 (g) + 3H2 (g) 1. The reaction above is not thermodynamically favorable (spontaneous). Predict the sign on delta H, S, and G. HomeworkTest Tomorrow Lab write up due Monday Is there a temperature at which delta G becomes thermodynamically favorable? 2. For any reaction, if delta G=0, what could you say about Ecell and the equilibrium constant, K? Through- Classwork Multiple choice questions practice Out-Reflection None Work on thermo questions if time In- 11/4/13 Warm-Up We are starting our unit on Kinetics. Kinetics deals with how fast a reaction happens. What factors can you think of that influence how fast a reaction happens? Explain. Out-Reflection HomeworkNone Through- Classwork Kinetics simulations in the computer lab In- 11/5/13, Warm-Up Answer each statement as either true or false. Give a reason for your answer. 1. If a reaction is thermodynamically favorable, it must happen at a fast rate. 2. Solid materials react slower than the same material in aqueous form. 3. Everytime atoms collide, a reaction happens. 4. A catalyst speeds up a reaction and is used up during the reaction. Out- Reflection None HomeworkKinetics Fun Through- Classwork Kinetics notes In- 11/6/13, Warm-Up Write out the relative rate of disappearance for each reactant and appearance for each product. 1. N2 + 3H2 → 2NH3 2. On the diagram below, label the reactants, products, Activation energy, activated complex, and delta H. 3. Explain how the diagram below would look different if there were multiple steps involved in this reaction. HomeworkNone Through- Classwork Kinetics skeleton notes and rate law practice problems. In- 11/13/13, Warm-Up 1. Describe in detail the picture below. Why specifically does raising the temperature increase reaction rate? 2. If you are given time and concentration data for a reaction, describe the process you would use to figure out the order for the reaction. HomeworkKinetics test next Tuesday Through- Classwork Introduce mechanisms Mechanism problems In- 11/14/13 Warm-Up Out- Reflection None Homework Kinetics Test next Tuesday Lab write up due next Friday ThroughClasswork Crystal Violet Lab In- 11/18/13, Warm-Up A + B →C 1. Draw a graph that shows how the concentrations of A, B , and C change with time if they are mixed in a closed container at constant temperature. 2. How would your graph change if 2 moles of A was mixed with 1 mole of B? 3. Draw a picture of an energy diagram and label: activation energy, reactants, products, enthalpy, and how it would change if a catalyst were added. HomeworkTest pushed back to Thursday Lab write up due Friday Through- Classwork Arrhenius Equation intro Time to work problems Out- Reflection None In- 12/2/13, Warm-Up You were to read and take notes over the break on gases. Summarize in clear, concise sentences the most important things you read about over the break. HomeworkPoinsettia money due tomorrow Through- Classwork Gas Laws Quiz In- 12/3/13, Warm-Up 1. What does the kinetic molecular theory say? There are 5 parts. HomeworkNone Through- Classwork Go over quiz from yesterday 2. Explain why the kinetic molecular theory does not hold Go through practice true for “real” gases. problems on gas laws We assume these statements are true for “ideal” gases. In- 12/4/13, Warm-Up A 1 L container has 1 mole of gas inside it. The temperature is 298 K. The pressure inside the container is 1 atm. How could you change the following: 1. Pressure 2. Kinetic Energy 3. Speed at which the molecules move Explain each answer. OutNone HomeworkNone Through- Classwork Work on gas law problems In- 12/6/13 Warm-Up 1. As best as you can, describe what effective nuclear charge is. 2. When you go down a group, the size of an atom increases. Explain what is happening based on attraction to the nucleus as you go down a group. Out- Reflection None Homework: Try HW problem handed out yesterday for Monday Through- Classwork Finish posters and present In- 12/10/13 Warm-Up Account for the differences listed below. 1. The second ionization energy of sodium is about 3 times greater than the second ionization energy of magnesium. 2. The radius of the Ca atom is 0.197 nm and the radius of the Ca2+ ion is 0.099 nm. HomeworkNone Through- Classwork Electron configuration notes In- 12/11/13, Warm-Up Write out the orbital diagram for the valence electrons in each atom listed below: Mo: Hf: Out- Reflection None HomeworkQuantum numbers practice Through- Classwork Quantum Numbers Notes Quantum Numbers practice worksheet In- 12/12/13 Warm-Up 1. How many electrons could have a quantum of n=3? 2. Write out the set of 4 quantum numbers for the 2nd to last valence electron in Zn. 3. Is it possible for any two electrons to have the exact same set of quantum numbers? 4. Is the set of quantum numbers below possible? n=4, l=-3, ml=-3,ms= +1/2 Out- Reflection HomeworkYou should be working on the problems given out in class to prepare for the test Through- Classwork Work on practice problems. In- 12/13/13 Warm-Up 1. Which set of quantum numbers below would be acceptable for the valence electrons in a halogen? a) 4, 3, 2, +1/2 b) 4, 0, 0, -1/2 c) 4, 1, -1, -1/2 d) 3, 2, -2, +1/2 2. The valence electrons for what other elements could be represented by the other 3 sets of quantum numbers? HomeworkStudy for your test Through- Classwork MC practice questions In- 12/14/12 Homework- We will be reviewing for finals on Monday. Write down specifically what you would like to review. You can make a list of most important topics if you want. I will be sure to read these and come up with a review based on your input. Study for finals Through- Classwork Clean out lab drawers Finish presentations Gold and Silver pennies Out- Reflection None In- 12/17/12, Warm-Up Review question A piece of metal has a mass of 15.6 grams. When placed in a graduated cylinder with 20.0 mL of water in it, the water level rises to 24.5 mL. Calculate the density of the piece of metal. Would this piece of metal float or sink in water which has a density of 1 g/mL? Explain your answer. HomeworkStudy for final exam Through- Classwork Review for final exam