Week 11: Section B
This week we will continue our discussion of molecular bonding. We will learn how to turn our two dimensional Lewis structures into to three dimensional molecular geometries. By the end of the week we will be able to apply and analyze four theories of molecular bonding: Valence Shell Electron Pair Repulsion theory, Valence Bond theory, Hybrid Orbitals, and Molecular Orbital Theory.
Homework #10 is posted on Mastering Chemistry and it covers chapter 8. It is due on Wednesday at midnight.
Monday Lecture Material:Lecture Slides 11-12, class notes 11-12
Wednesday Lecture Material: Lecture Slides 11-14, class notes 11-14
Friday Lecture Material:Lecture Slides 11-16, class notes 11-16
| Week 11 | Sat, Sun 11/10-11 | Mon 11/12 | Tue 11/13 | Wed 11/14 | Thu 11/15 | Fri 11/16 |
| In Class | Chapter 9 | Chapter 9 | Chapter 9 | |||
| Learning Objectives | Describe the 3D structure of molecules based on VSEPR theory. | Relate the hybrid orbitals used in bonding and to the 3D structure of molecules. | Explain how molecular orbital theory is used to describe bonding in diatomic molecules | |||
| Topic | Bonding Theories: VESPR | Bonding Theories: Valence Bond Theory and Hybrid Orbitals | Bonding Theories: Molecular Orbital Theory | |||
| Activities | Balloon Models | Building Molecular Models | Will liquid O2 stick to a magnetic? | |||
| Outside of Class | ||||||
| Homework | Work on HW #10 | Work on HW #10 | Work on HW #10 | Homework #10 is due at 11:59pm | Start HW #11 | Work on HW#11 (Due Tues. 11/20 at Midnight) |
| Reading | 1st Read of Chapter 9 | 2nd Read of Chapter 9 | ||||
| Other Things to Remember | Special Office Hours Sun. 1pm-3pm | Office Hours 2:30-4:00 | Office Hours 1-2:30 | |||
| Practice Problems | 9.13, 9.17, 9.21, 9.27, 9.37 | 9.45, 9.49, 9.53. 9.55, 9.61, 9.63 | 9.59, 9.61, 9.69, 9.71 |
For your entertainment, a remake of “Shape of You” but with a mash-up of all the 4 bonding theories that we’ll discuss this week.
Week XI – Advanced Bonding – King
Reading: Chapter 9
Homework: Please see Mastering Chemistry
Polarity
Molecular Shapes and VSEPR
Bond Strength and Energies
Valence Bond Theory
Molecular Orbitals – Wave Example I, Simple Wave II
Resources: Chapter 9 Slides, Chapter 9 Notes 2018, Chemical Education Molecule Viewer
Why we care about the shapes of Molecules –
Week 10: Section B
Molecular Bonding! This week we will build on what we’ve learned about valence electrons in chapters 6 and 7 in order to understand how atoms connect to form molecules. We will start with ionic bonding which builds directly out of concepts of ionization and electron affinity from chapter 7. Then we will master drawing Lewis structures, including learning to draw resonance structures and learning when it is ok to break the octet rule. By the end of the week we will be able to relate Lewis structures to bond strengths and to enthalpies of reactions.
Homework #9 covers chapter 7. It is due on Mastering Chemistry at midnight on Wednesday.
Monday Lecture Materials: Lecture Slides 11-5, class notes 11-5
Wednesday Lecture Materials: Lecture Slides 11-7, class notes 11-7
Friday Lecture Materials: Lecture Slides 11-9, class notes 11-9
| Week 10 | Sat 11/3 Sun 11/4 | Mon 11/5 | Tue 11/6 | Wed 11/7 | Thu 11/8 | Fri 11/9 |
| In Class | Chapter 7 and 8 | Chapter 8 | Chapter 8 | |||
| Learning Objectives | Relate electron configurations to periodic trends and observed exceptions to the trends. | Write lewis structure for molecules. Use electronegativity to categorize bonding types. Use formal charges to identify the best lewis structure. | Identify when resonance structures or exceptions to the octet rule are necessary to define bonding. | |||
| Topic | Electron Affinity, Exceptions to Periodic Trends, Ionic Bonding | Covalent Bonding, Bond Polarity, Lewis Structures | Lewis Structure, Resonance Structures, Exceptions, Bond Enthalpy | |||
| Outside of Class | ||||||
| Homework | Homework #8 is due at 11:59pm | Work on homework #9 | Homework #9 is due at 11:59pm | Work on Homework #10 | ||
| Reading | 1st read of chapter 8 | 2nd read of chapter 8 | ||||
| Other Things to Remember | Office Hours 2:30-4:00 | Office Hours 1-2:30 | ||||
| Practice Problems | 8.7, 8.9, 8.17, 8.19, 8.20 | 8.33, 8.35, 8.41, 8.45, 8.49 | 8.55, 8.56, 8.63, 8.65, 8.69, 8.71 |
Week X – Bonding – King
Reading: Chapter 8
Homework: Please see Mastering Chemistry
Ionic Bonding
Lattice Energies
Covalent Bonding
Lewis Structures
Bond Polarity and Electronegativity
Resources: Chapter 8 notes 2018, Chapter 8 slides
Viewing Molecules: Simple – ethanol, Complex – carbonic anhydrase
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