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Week 14 Schedule: Section B
In our last week of classes we will be building on our understanding of intermolecular forces to investigate why solutions have the properties that they do. Why are some solids insoluble while others readily dissolve? Why do cold beverages stay carbonated better than warm ones? How can we use properties of solutions to make frozen ice cream?
Homework #12 is due on Wednesday. Additional practice problems will be posted on Mastering Chemistry to give you a chance to practice the material covered in chapter 13.
Monday Lecture Material: Lecture Slides 12-3, Class notes 12-3
Wednesday Lecture Material: Lecture Slides 12-5, class notes 12-5
Friday Lecture Material: Lecture Slides 12-7, class notes 12-7, Answer to the Challenge Problem from 12-7
Additional Resources: The downside to salting our roads
| Week 14 | Sat 12/2, Sun 12/3 | Mon 12/3 | Tue 12/4 | Wed 12/5 | Thu 12/6 | Fri 12/7 |
| In Class | Chapter 13 | Chapter 13 | Chapter 13 and Chapter 12 | |||
| Learning Objectives | Relate intermolecular forces to properties of solutions | Do calculations related to colligative properties. | Describe structures of solids and relate their structures to the properties | |||
| Topic | Properties of Solutions | Properties of Solutions | Applications and Modern Materials | |||
| Outside of Class | ||||||
| Homework | Work on HW #12 | Finish HW#12 | Homework #12 is due at 11:59pm | |||
| Reading | 1st Read of Chapter 13 | 2nd Read of Chapter 13 | ||||
| Other Things to Remember | Office Hours 2:30-4:00 | Office Hours 1:00-2:30 | ||||
| Practice Problems | 13.2, 13.7, 13.15, 13.17, 13.29, 13.27 | 13.39, 13.51, 13.61, 13.63, 13.69, 13.75 | 13.85 |
Week 13 Schedule: Section B
This week we will build off of the concepts of molecular structure, polarity, and dipole moments to understand how intermolecular forces stick molecules to each other in the liquid and solid phases. We will explain properties of liquids and solids as well as their phase changes from the intermolecular forces that occur between molecules.
Reminder: Exam #3 is on Wednesday. More information can be found here. There is a review session on Monday at 7pm.
Homework #12 will be due next week on Wed. December 5th.
Monday Lecture Materials: Lecture slides 11-26, Class notes 11-26
Wednesday Lecture Materials: Lecture slides 11-28, Lecture slides 11-28-With soln to Practice, Class notes 11-28
Viscosity and the Pitch Drop Experiment
Friday Lecture Materials: Lecture Slides 11-30
Surface Tension in Space:
| Week 13 | Mon 11/26 | Tue 11/27 | Wed 11/28 | Thu 11/29 | Fri 11/30 |
| In Class | Chapter 11 | Chapter 11 | Chapter 11 | ||
| Learning Objectives | Molecular Comparison of solids, liquids and gases. Relating molecular structure to intermolecular forces. | Relating properties of liquids to their intermolecular forces. | Structures and bonding of solids. | ||
| Topic | Liquids and Intermolecular Forces | Liquids and Intermolecular Forces | Liquids and Intermolecular Forces | ||
| Outside of Class | |||||
| Homework | Work on Homework #12 | ||||
| Reading | 1st read of chapter 11 | 2nd read of chapter 11 | |||
| Other Things to Remember | Review Session 5pm-7pm Keyes 105 | 3rd Exam is Tonight from 5-7pm in Keyes 105 | Office hours 1:00-2:30pm | ||
| Practice Problems | 11.12, 11.15, 11.17, 11.21, 11.22 | 11.29, 11.32, 11.37, 11.39, 11.45 | 11.51, 11.55, 11.59, 11.61, 11.71 |
Third Exam and Review Session
Reminder: Exam 3 is Wednesday, Nov. 28. Exam Locations: Keyes 105, 102, 103, and 114.
Practice exams and their solutions can be found on the Sample Exam page. The relevant files are Practice Exam 3, Exam 3 (with answers) from 2016, and Practice Exam 3 2017. You are strongly encouraged to do these practice exams before Monday 11/26.
Exam information: Exam 3 will be held on Wed, Nov. 28 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 1-10 and laboratory material from up to and including experiment 9. Chapters 6-9 will be emphasized (Electronic Structure of Atoms through Molecular Geometries and Bonding Theories). Allowed exam items are pens/pencils and a course-approved calculator. You will be provided with a periodic table and equation sheet.
There will be an optional review session on Monday, 11/26 in Keyes 105 at 7 PM.
“Week” 12: Section B
On Monday we will look at more challenging and integrative practice problems from chapter 9. These practice problems will help you prepare for exam #3 which will take place on Wednesday, Nov 28th at 5pm.
Be sure to look at the practice exams posted under “Sample Exams and Exam Solutions” over the next week. I also recommend that you do the practice problems posted on this blog as well as those posted on Mastering Chemistry.
I hope you have a fantastic and restful Thanksgiving!
Monday Lecture Material: Lecture Slides 11-19, Class notes and solutions to Integrative Examples 11-19
| Week 12 | Sat 11/17 | Mon 11/19 | Tue 11/20 | Wed 11/21 | Thu 11/22 | Fri 11/23 |
| In Class | Chapter 9 | No Class | No Class | |||
| Learning Objectives | Compare and contrast the 4 bonding theories. Apply the 4 bonding theories to challenging molecules. | |||||
| Topic | Bonding Theories | |||||
| Outside of Class | ||||||
| Homework | Work on HW #11 | Work on HW #11 | Finish HW #11 | Homework #11 is due at 11:59pm | ||
| Reading | Read chapter 9 | First read of Chapter 11 | ||||
| Tasks | Eat & Relax | Attempt Practice Exam #3 | ||||
| Practice Problems | 9.85, 9.89, 9.91, 9.97, 9.99 |
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 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 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 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 |
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 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 |