Archive for September, 2018
Week V. 10/1/18 – Themochemistry
Reading: Chapter 5
Homework: Please see Mastering Chemistry
Lecture Outline:
Energy
System and Surroundings
State Functions
PV Work
Heat
Calorimetery
First Law
Enthalpy
Heats of Reaction
Notes:doc00335320181008073818, doc00334820181005071319, doc00332020181001072109,, Sodium Drop
Resources: Colby Biomass, Chapter 5 I slides, Heat Capacities, heats of formation, Per capita CO2 production
Exam and Review Session
Review session for first exam is on Sunday at 7 PM in Keyes 5.
Reminder: Exam 1 is Monday, Oct. 1st! Exam Locations: Last name A-M in Keyes 105. Last name N-Z in rooms 102 and 103, and 114.
A practice exam can be found on the “Sample Exams” section of the course website. The relevant files are Practice Exam 1, Answers to Practice Exam 1 , and Exam 1 from 2016.
Exam information: Exam 1 will be held on Monday, October 1st 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 1-3, chapter 4 sections 1-2 and 5-6 (note: titrations from section 6 will not be tested), and laboratory material from experiments 1-3. 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 Sunday, September 30 starting at 7:00 pm in Keyes 105.
Week 4: CH141 B Schedule
Which chemical reactions happen in our water sources like the the Belgrade Lakes? How does the fluoridation of drinking water protect tooth enamel? How do plants react when eaten by a caterpillar? To answer these questions (and many more!) we first need to explore how chemistry happens in the aqueous phase!
This week we will learn about different types of reactions that can happen when molecules are dissolved in water.
Reminder: Our first exam will happen on Monday, Oct. 1st from 5pm -7pm. More information can be found here. There will be an optional review session on Sunday, September 30 starting at 7:00 pm in Keyes 105.
Study Tip of the Week: Do you and your study group feel confused about a practice problem? Bring the questions and your whole study group to office hours or email me to schedule a meeting time. We can figure it out together!
Materials for class will be posted here throughout the week.
Monday Lecture Materials: Lecture Slides 9-24, Class Notes 9-24
Wednesday Lecture Materials: Lecture Slides 9-26, Class Notes 9-26
Friday Lecture Materials: Lecture Slides 9-28, Class Notes 9-28
| Week 4 | Sat 9/22, Sun 9/23 | Mon 9/24 | Tue 9/25 | Wed 9/26 | Thu 9/27 | Fri 9/28 |
| In Class | Chapter 4 | Chapter 4 | Chapter 4 | |||
| Learning Objs. | Do quantative problem solving using the concepts of limiting reagents and molarity. | Catergorize different aqueous reactions and relate catorigorization to chemical properties. | Do quantitative problem solving using the concepts of molarity, titrations, and aqueous phase chemistry. | |||
| Topic | Limiting Reagents Reactions in Aqueous Solution, Concentrations of Solutions | Types of Reactions in Aqueous Solution | Aqueous Solution Stoichiometry | |||
| Activities | Limiting Reagent Experiment with acetic acid and sodium bicarbonate | Precipitation Reactions | ||||
| Outside of Class | ||||||
| Homework | Work on HW #3 | **Homework #3 is due at 11:59pm** | ||||
| Reading | 1st Read of Chap 4. | 2nd Read of Chap 4. Focus on sections 4.1 and 4.5. | 2nd Read of the rest of Chap 4. | |||
| Other Things to Remember | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | ||||
| Practice Problems | 4.15, 4.61, 4.67 | 4.19, 4.23, 4.35, 4.39, 4.69, | 4.49, 4.53, 4.79, 4.83, 4.100 |
Week IV 9/24/2018. Reactions in Aqueous Solution
Please see the general post with Exam details.
Reading: Chapter 4 and chapter 20.2 (balancing REDOX reactions)
Homework: Please see Mastering Chemistry
Lecture Outline:
Properties of Aqueous Solutions
Precipitation Reactions
Acid/Base Reactions
Redox Reactions
Activity Series
Working with solution concentration
Solution Stoichiometry
Resources: Sucrose, electrolytes-I-2018 redox figures 2013, doc00330820180928074005
Week III. 9/17/2018. Stoichiometry
Reading: Chapter 3.
Homework: Please see Mastering Chemistry
Lecture Outline:
Balancing Chemical Equations
Formula and Molecular Weights
The Mole and Molar Mass
Molecular and Empirical Formulas
Using Balanced Equations and Limiting Reagents
Resources:
For nomenclature help enter the chemical formula or name into your browser search field., air bag demo,
Week 3: CH141 B Schedule
Chemical reactions! They are all around us and critical for life and our environment! This week we will dive into chemical reactions and practice a lot with quantitative problem solving and chemical nomenclature.
Make note that HW#2 is due Wednesday night. If you have any questions related to the course syllabus, please come see me during office hours by Wednesday.
Lecture Materials for Monday:Lecture Slides 9-17, Lecture Outline 9_17
Additional Practice with Nomenclature:Nomenclature Practice, Nomenclature Practice Answers
Lecture Materials for Wednesday: Lecture Slides 9-19, Lecture Outline from 9_19
Lecture Materials for Friday: Lecture Slides 9-21, 9_21 Lecture Outline
Notes from this week’s class:Class Notes Week of 9-17 to 9-21
| Week 3 | Sat 9/15, Sun 9/16 | Mon 9/17 | Tue 9/18 | Wed 9/19 | Thu 9/20 | Fri 9/21 |
| In Class | Chap. 2 and 3 | Chapter 3 | Chapter 3 | |||
| Learning Objs. | Translate between chemical nomenclature and equations for chemical reactions. | Do quantitative problem solving using balanced chemical reactions. | Do quantitative problem solving using limiting reagents. | |||
| Topic | Nomenclature and Chemical Reactions | Stoichiometry | Stoichiometry and Limiting Reagents | |||
| Activities | Decomposition of Hydrogen Peroxide | Limiting reagent with acetic acid and sodium bicarbonate | ||||
| Outside of Class | ||||||
| Homework | Work on HW #2 | ***Homework #2 is due at 11:59pm *** | Start HW#3 | |||
| Reading | 1st Read of Chap 3 | 2nd read of Chap 3 | ||||
| Other Things to Remember | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | ||||
| Additional Practice Problems | 2.37, 2.43, 2.47, 2.49, 2.55 | 2.67, 2.77, 2.73, 3.11, 3.13 | 3.19, 3.33, 3.39, 3.51, 3.57 | 3.71, 3.75, 3.77, 3.97 |
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Reference: Chemical & Engineering News, SEPTEMBER 3, 2018 | APPEARED IN VOLUME 96, ISSUE 35
Resources: This video was also posted by the American Chemical Society…
Week II: 9/10/2018
News: Laboratory starts this week. Please use the laboratory link to read prelab materials.
Reading: Chapter II
Lecture Outline for Chapter II:
Atomic Theory
Atomic Structure
Atomic Weights
The Periodic Table
Molecules and Ions
Nomenclature
King Lecture Resources: Chapter II Figures, Atomic Force Microscopy, big-bang, Nomenclature
Week 2: Chem 141 B Schedule
Here is our schedule for the week of 9/8 to 9/14.
Note: Assignments are due on Sunday and Monday evenings at midnight. Check Mastering Chemistry for more details!
Monday Lecture Materials: Ch141_9-10-2018-slideshow, Lecture Outline 9-10-2018, Class notes 9-10
Wednesday Lecture Materials: Ch141_9-12-2018-slideshow, Lecture Outline 9-12-2018, Class-Notes-9-12
Friday Lecture Materials: Ch141_9-14-2018-slideshow, Lecture Notes 9-14, Class notes 9-14
Lecture slides and notes will be posted here throughout the week.
| Week 2 | Sat 9/8, Sun 9/9 | Mon 9/10 | Tue 9/11 | Wed 9/12 | Thu 9/13 | Fri 9/14 | |
| In Class | Chapter 2 | Chapter 2 | Chapter 2 | ||||
| Learning Objs. | To understand the basic structure of the atom and its subatomic particles. | Quantitative problem solving. Relate the organization of the periodic table to properties. | To learn to communicate using the nomenclature used by chemists | ||||
| Topic | Atoms, Molecules, and Ions | Atoms, Molecules, and Ions | Atoms, Molecules, and Ions | ||||
| Activities | Warm-up, Build scaled-up model of an H atom | Think-Pair-Share quantative practice problems, Cathode Ray Tube | Self assessment of study strategies | ||||
| Outside of Class | |||||||
| Homework | ***Colby Chemistry Assessment (Diagnostic Quiz) on Mastering Chemistry is Due at 11:59*** | ***Introduction to Mastering Chemistry is due at 11:59*** | Start HW #2 | Work on HW #2 | |||
| Reading | 1st Read of Chap 2 | 2nd read of Chap 2 | |||||
| Other Things to Remember | Lab starts this week! More Information. (Scroll down to table) | Office Hours: 2:30-4:00 Keyes 314 | Office Hours: 1:00-2:30 Keyes 314 | ||||
| Practice Problems | 1.13, 1.15, 1.23, 1.29, 1.39, 1.60 | 1.47, 2.13, 2.19 | 2.15, 2.29, 2.41 2.47 | 2.65, 2.67, 2.77, 2.83 |
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