Archive for October, 2018
Week IX Periodic Trends – King
Reading: Chapter 7
Homework: Please see Mastering Chemistry
Periodic Table
Effective Nuclear Charge
Atom and Ion Size
Ionization Energy
Electron Affinity
Resources: Web Elements , Chapter 7 Notes 2018, Chapter 7 Slides
Week 9 Schedule: Section B
Now that we know that electrons are in orbitals (not orbits!) around the nucleus, that different orbitals have different shapes and energy levels, and that no two electrons can have the same 4 quantum numbers, we will be able to determine how electrons are arranged around any element. This week we’ll build on this understanding to discuss periodic trends and chemical properties for the elements in chapter 7.
Homework 8 is now posted on Mastering Chemistry. It is due on Saturday at midnight and will cover all of chapter 6.
Office hours this week will be Wednesday from 2:30-4:00 pm and Friday from 1:00-2:30pm. Feel free to email me if you’d like to meet but can’t make those times.
Monday: Lecture Slides 10-29, class notes 10-29
Wednesday: Lecture Slides 10-31, class notes 10-31
Friday: Lecture Slides 11-2, class notes 11-2
Bonus Material: How Stern and Gerlach discovered electron spin
| Week 9 | Sat 10/27 and Sun 10/29 | Mon 10/29 | Tue 10/30 | Wed 10/31 | Thu 11/1 | Fri 11/2 |
| In Class | Chapter 6 | Chapter 7 | Chapter 7 | |||
| Learning Objectives. | Determine electronic configuration for any element | Relate effective nuclear charge to periodic properties. | Relate periodic trends and properties to chemical properties. | |||
| Topic | Electronic Configurations | Periodic Trends | Periodic Trends | |||
| Activities | Electrifying a pickle (sodium emission) | |||||
| Outside of Class | ||||||
| Homework | Work on Homework #8 | Work on Homework #8 | Finish HW #8 (Due Sat at midnight) | |||
| Reading | 1st read of chapter 7 | 2nd read of chapter 7 | ||||
| Other Things to Remember | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | ||||
| Practice Problems | 6.59, 6.61, 6.71, 6.84 | 7.23, 7.29, 7.39, 7.43, 7.45 | 7.57, 7.7.61, 7.7.67, 7.73 |
Week VIII – Atoms (King)
Reading: Chapter 6
Homework: Please see Mastering Chemistry
Light
Energy is Quantized
Line Spectra and the Bohr Model
Wave nature of matter
Atomic Orbitals
Orbital Shapes
Electronic Configurations
Resources: Chapter 6 Images, Bohr, Schrodinger,
King Chapter 6 Notes- A, Bohr Calcs, Uncertianty, King Chapter 6 Notes- B
Week 8: Section B Schedule
This week we will finish our discussion of the physical properties of gases (chapter 10) with a discussion on how real gases interact with each other and have molecular volume. You may be wondering, “why is that?” Why do molecules attract and repel each other, and what exactly gives the molecules volume?
To answer these questions we need learn about electrons and molecular bonding. Over the next five weeks we will discuss how electrons form bonds in molecules and how different atoms are bonded together. To start off this discussion, we will lay the foundations by learning about the electronic structure of atoms.
Reminder: Exam #2 is this Thursday! The exam will take place from 5pm to 7pm on the first floor of Keyes. There will be a review session held on Tuesday 10/23 (Mole Day!) starting at 8pm. More information can be found here.
Homework #7 is due at midnight on Wednesday.
Monday Lecture Material: Lecture Slides 10-22, class notes 10-22
Wednesday Lecture Material: Lecture Slides 10-24, class notes 10-24
Friday Lecture Material:Lecture Slides 10-26, class notes 10-26
| Week 8 | Sat 10/21, Sun 10/22 | Mon 10/22 | Tue 10/23 | Wed 10/24 | Thu 10/25 | Fri 10/26 |
| In Class | Chapter 10 and Chapter 6 | Chapter 6 | Chapter 6 | |||
| Learning Objectives | Relate the Kinetic Molecular Theory of Gases to diffusion and effusion. Quantitatively describe electromagnetic radiation. | Relate the quantized nature of electrons to the interaction between matter and light. | Qualitatively describe the electron orbitals and determine electronic configurations of the elements. | |||
| Topic | Real Gases and Wave Nature of Light | Quantized Energy and the Wave Nature Matter | Electron Orbitals and Electronic Configurations | |||
| Activities | Collapsible Can | Demos of Electron Orbitals | ||||
| Outside of Class | MOLE DAY! | |||||
| Homework | **Homework #7 is due at 11:59pm** | |||||
| Reading | 1st Read of Chapter 6 | 2nd Read of Chapter 6 | ||||
| Other Things to Remember | Review Session Keyes 105 8pm-10pm | Office Hours: 2:30-4:00 Keyes 314 | **2nd Exam is Tonight from 5-7pm in Keyes 105** | |||
| Practice Problems | 6.11, 6.15, 6.23, 6.25 | 6.31, 6.35, 6.41, 6.45 | 6.49, 6.51, 6.55, 6.63, 6.65, 6.67 |
Second Exam and Review Session
Review session for the second exam is on Tuesday at 8 PM in Keyes 105.
Reminder: Exam 2 is Thursday, Oct. 25! Exam Locations: Keyes 105, 102, 103, and 114.
A practice exam can be found on the “Sample Exams” section of the course website.
Exam information: Exam 2 will be held on Thursday, Oct. 25 from 5:00-7:00 pm. You may work for the entire 2 hours, but the exam is expected to take most students 60 min. The exam will cover the class material from chapters 1-5, 10, 20.1, and 20.2 and laboratory material from experiments 1-6. Read experiment 6 even if you have Friday lab. It is a excellent review of thermochemistry. Allowed exam items are pens/pencils and a course-approved calculator. You will be provided with a periodic table. There will be an optional review session on Tuesday, 10/23 in Keyes 105 at 8 PM.
Equation Sheet for Exam #2: Exam 2 Equations and Constants
Week 7 Schedule: Section B
This week we will explore the behavior ideal and real gases. We will jump ahead to chapter 10 this week and return to chapter 6 the following week. We aim to expand our repertoire problem solving techniques to be able to convert between volumes, pressures, and temperatures of gases to moles. We will also consider what assumptions go into the ideal gas law and when those assumptions break down. Be sure to check out the Gas Simulator!
Homework #6 which covers the end of chapter 5 will be due Wednesday 10/17 at midnight.
Remember, exam 2 is on the horizon! Exam 2 will take place on Thursday, 10/25, from 5pm to 7pm.
Lecture Materials for Wednesday: Lecture Slides 10-17, Gas Simulator, class notes 10-17
Lecture Materials for Friday: Lecture Slides 10-19, class notes 10-19
| Week 7 | Sat and Sun 10/13-10/14 | Mon 10/15 | Tue 10/16 | Wed 10/17 | Thu 10/18 | Fri 10/19 |
| In Class | Chapter 10 | Chapter 10 | ||||
| Learning Objs. | Quantitative problem solving using the ideal gas law and partial pressures | Relate the kinetic molecular theory to the ideal gas law. Analyze why gases might deviate from ideal behavior. | ||||
| Topic | Gas Law, Mixtures and Partial Pressure | Kinetic and Molecular Theory and Real Gases | ||||
| Activities | Collapsible Can | |||||
| Outside of Class | ||||||
| Homework | Work on HW #6 | **Homework #6 is due at 11:59pm** | Work on HW #7 | |||
| Reading | 1st Reading of Chapter 10 | 2nd Reading of Chapter 10 | ||||
| Other Things to Remember | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | ||||
| Practice Problems | 10.33, 10.39, 10.49, 10.63, 10.67 | 10.71, 10.75, 10.77, 10.83, 10.95, 10.101 |
Week VI – Gases
Reading: Chapter 10
Lecture Outline:
Pressure
PV=nRT
Using Gas Laws
Partial Pressures
Kinetic Molecular Theory
Effusion and Diffusion
Real Gases
Resources: CO2 in the atmosphere, chapter 10 images, Gas Demo 1 (V vs P) 2016, Gas Simulation, King Chapter 10 Notes 2018,
| Click to Run |
Week 6 Schedule: Section B
How are chemical reactions and energy related? What does it mean to transfer energy? How can we get usable energy out of chemical reactions? How can we measure these properties?
This week we will be answering these questions and more while we study Thermochemistry!
Reminder: We have two homework assignments due this week. One on Sunday and a second on Wednesday. After this week, we will resume our usual Wednesday due date schedule for homework.
Monday Lecture Materials:Lecture Slides 10-8, class notes 10-8
Wednesday Lecture Materials: Lecture Slides 10-10, class notes 10-10
Friday Lecture Materials: Lecture Slides 10-12, Class notes 10-12
| Week 6 | Sat and Sun 10/6-7 | Mon 10/8 | Tue 10/9 | Wed 10/10 | Thu 10/11 | Fri 10/12 |
| In Class | Chapter 5 | Chapter 5 | Chapter 5 | |||
| Learning Objectives | Use the concepts of state functions, work, heat, and enthalpy to numerically analyze reactions. | Do quantitative problem solving using concepts of enthalpy. | Do quantitative problem solving with calorimetry and Hess’s law. | |||
| Topic | Thermochemistry | Thermochemistry | Thermochemistry | |||
| Activities | Endothermic and Exothermic Demo | Coffee Cup Calorimetry Demo | ||||
| Outside of Class | ||||||
| Homework | **Homework #4 is due at 11:59pm** | **Homework #5 is due at 11:59pm** | Start on Homework #6 | |||
| Reading | Review Chap 5. Focus on 5.1 to 5.4 | Review Chap 5. Focus on 5.4 to 5.8 | ||||
| Other Things to Remember | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | ||||
| Practice Problems | 5.1, 5.5, 5.6, 5.24, 5.25, 5.29 | 5.31, 5.37, 5.41, 5.42, 5.45, | 5.47, 5.55, 5.59, 5.63, 5.73, 5.79 |
Week 5: Section B Schedule
This week we will start by finishing chapter 4 with Oxidation and Reduction Reactions and then take a brief detour into chapter 20 to learn how to balance Redox reactions.
Then we will begin our discussion on how energy is transferred due to chemical reactions with Thermochemistry.
Reminder: First Exam is Monday, October 1st from 5pm until 7pm.
Because of the exam, you have a few extra days to do Homework Assignment #5. That is due on Sunday, 10/7.
Lecture Materials for Monday: Ch141_10-1-2018, class notes 10-1
Lecture Materials for Wednesday: CH141_10-3-2018, class notes 10-3
Lecture Materials for Friday: Lecture Slides 10-5, class notes 10-5
| Week 5 | Sun 9/30 | Mon 10/1 | Tue 10/2 | Wed 10/3 | Thu 10/4 | Fri 10/5 |
| In Class | Chapter 4 | Chapter 5 | Chapter 5 | |||
| Learning Objs. | Do quantitative problem solving using the concepts of titrations and redox chemistry. | Relate the first law of thermodynamics to heat and work of a reaction. | Do quantitative problem solving using concepts of enthalpy and heat capacity. | |||
| Topic | Aqueous Solution Stoichiometry | Thermochemistry | Thermochemistry | |||
| Activities | Endothermic and Exothermic Reactions | Heat capactiy of water Demo | ||||
| Outside of Class | ||||||
| Homework | Study for the Exam | Start HW #4 | Work on HW#4 | |||
| Reading | Sections 20.1 and 20.2 | 1st Read of Chapter 5 | 2nd Read of Chapter 5 | |||
| Other Things to Remember | **First Exam is Tonight from 5-7pm in Keyes 105** | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | |||
| Practice Problems | 4.61, 4.69, 4.49, 4.53, 20.19, 20.21 | 5.9, 5.17, 5.25, 5.29 | 5.31, 5.37, 5.41, 5.45 |