Archive for September, 2018

Week V. 10/1/18 – Themochemistry

Reading:  Chapter 5

Homework:  Please see Mastering Chemistry

Lecture Outline:

System and Surroundings
State Functions
PV Work
First Law
Heats of Reaction

Notes:doc00335320181008073818, doc00334820181005071319,  doc00332020181001072109,,  Sodium Drop

Resources:  Colby Biomass,  Chapter 5 I slidesHeat Capacitiesheats 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 9-24Class Notes 9-24

Wednesday Lecture Materials: Lecture Slides 9-26Class Notes 9-26

Friday Lecture Materials: Lecture Slides 9-28Class 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: Sucroseelectrolytes-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


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 9-17Lecture 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 9-219_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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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

King Lecture Resources: Chapter II Figures,  Atomic Force Microscopy,  big-bangNomenclature


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-slideshowLecture Outline 9-10-2018Class notes 9-10

Wednesday Lecture Materials: Ch141_9-12-2018-slideshowLecture Outline 9-12-2018Class-Notes-9-12

Friday Lecture Materials: Ch141_9-14-2018-slideshowLecture Notes 9-14Class 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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