Davidson College

CHE 115: Principles of Chemistry

Fall 2023
David N. Blauch


Class videos and laboratory documents are available in the class Google Drive.

Help Sessions with Marcelo Munoz

Sunday7:00 pm - 9:00 pm
Monday8:30 pm - 9:30 pm
Tuesday6:00 pm - 8:00 pm
Thursday7:00 pm - 9:00 pm
Help sessions will be held in Wall 243, except on Sunday Sept 3, which will be held in Wall 320.


For each assignment, write your answers in the space provided on the question sheet. As necessary, attach additional pages showing your work.

Homework assignments are also available from the Google Drive CHE115\Homework folder.
Due Wednesday, September 6, 2023

Due Wednesday, September 13, 2023

Due Wednesday, September 27, 2023

Due Wednesday, October 4, 2023

Due Wednesday, October 18, 2023

Due Wednesday, October 25, 2023

Due Wednesday, November 8, 2023

Due Wednesday, November 15, 2023


The class Google Drive CHE115\Lab folder contains lab experiment documents, videos explaining each experiment and videos demonstrating lab techniques. Be sure to study these resources before each lab period. There is no laboratory pre-lab. Students should begin work as soon arriving for lab.

Due Tuesday, September 12, 2023

          Table of the Nuclides
Due Tuesday, September 26, 2023

Due Tuesday, September 26, 2023

Due Tuesday, September 26, 2023

Due Tuesday, October 3, 2023

Due Tuesday, October 17, 2023

Due Tuesday, October 24, 2023

Due Tuesday, October 31, 2023

Due Tuesday, November 14, 2023

Due Tuesday, November 27, 2023


Class Resources

RSC Periodic Table

Videos for all course topics are available in the Google Drive CHE115\Video folder.
Be sure to watch and study all videos for each class in advance.

Week 1. Atomic Structure, Orbitals and Electron Configuration

August 28
August 30
September 1

Atomic Orbitals (Virtual Reality)
Visualization of Atomic Orbitals (Virtual Reality)
Sizes of Atomic Orbitals (Virtual Reality)
Vibrating String (SMUPhysics)

Week 2. Atomic Properties, Chemical Bonding and Lewis Structures

September 4
September 6
September 8

Atomic Orbitals (Virtual Reality)
Visualization of Atomic Orbitals (Virtual Reality)
Sizes of Atomic Orbitals (Virtual Reality)
Atomic Properties (Excel)

Week 3. Resonance, Shapes of Molecules and Chemical Nomenclature

September 11
September 13
September 15

Nomenclature: Expectations for Simple Compounds
Valence-Shell Electron-Pair Repulsion Model (Virtual Reality)
VSEPR Exercise (Virtual Reality)
VSEPR Considerations (Virtual Reality)

Week 4. First Review, Hybridization and Molecular Orbital Theory

First Review : September 18 : Review, Chapters 1, 2, 3
September 20
September 22

Hybrid Orbitals
Geometry of Hybrid Orbitals (Virtual Reality)

Localized Bonding Model (Virtual Reality)
Orbital Symmetry
MO Theory for H2
MO Theory for HF

Week 5. Molecular Orbital Theory, Chemical Reactions and Chemical Equations

September 25
September 27
September 29

Carbon-Hydrogen Elemental Analysis

Week 6. Stoichiometry, Aqueous Solutions and Types of Chemical Reactions

October 2
October 4
October 6

Week 7. Second Review, Energy, Enthalpy and Calorimetry

Fall Break : October 1
October 11
Second Review : October 13 : Chapters 4, 5, 6

Specific Heat Capacity of Copper
Heat of Solution of Ammonium Nitrate
Heat of Neutralization
Heat of Combustion of Methane

Week 8. Standard State, Hess's Law, Bond Dissociation Energy and Gas Laws

October 16
October 18
October 20

Heat of Solution of Calcium Hydroxide
Table of Bond Energies

Boyle's Law
Boyle's Law Calculations
Charles's Law

Week 9. Gas Mixtures, Real Gas Behavior and Intermolecular Forces

October 23
October 25
October 27

Avogradro's Law
Dalton's Law
Determination of the Gas Constant

Kinetic Molecular Theory: Basic Concepts
Kinetic Molecular Theory: Maxwell Distribution
Kinetic Molecular Theory: Diffusion
Nitrous Oxide and the van der Waals equation (PowerPoint)

Structures of Solids
The Gas Phase
The Solid Phase
The Liquid Phase

Week 10. Third Review, Vapor Pressure, Phase Diagrams and Solutions

October 30
November 1
Third Review : November 3 : Chapters 7, 8, 9

Heating Curve
Phase Diagram
Vapor Pressure

Week 11. Ideal Solutions, Colligative Properties and Rate Laws

November 6
November 8
November 10

Rate of a Reaction
Differential Rate Laws
Integrated Rate Laws
Isolation Method
Method of Initial Rates

Week 12. Reaction Mechanisms, Collision Model for Reactions and Chemical Equilibrium

November 13
November 15
November 17

Chemical Equilibrium
Equilibrium Constant

Week 13. Solving Equilibrium Problems and Le Châtelier's Principle

November 20
Thanksgiving Break : November 22
Thanksgiving Break : November 24

Reaction Table
Le Châtelier's Principle

Week 14. Fourth Review, Aqueous Equilibria and Entropy

November 27
Fourth Review : November 17 : Chapters 10, 11, 12
December 1

Week 15. Free Energy

December 4
Preparation for Final Exam : December 6


Please be aware that the order of topics and the timing of reviews varies from one year to the next.
The table below indicates the questions from each spot that are relevant to each of the Fall 2021 reviews.

SpotFall 2023
First Review
Fall 2023
Second Review
Fall 2023
Third Review
Fall 2023
Fourth Review
First Review S16
(no answers)
#1, 2      
First Review F20
(no answers)
#1 - 5, 7 - 8      
First Review F21
(no answers)
#1 - 8      
Second Review S16
(no answers)
#2, 7      
Second Review F20
(no answers)
#1, 2, 5, 6A, 8      
Second Review F21
(no answers)
#1, 2, 4A      
Third Review S16
(no answers)
#1BC, 3A, 4A, 5A      
Third Review F20
(no answers)
Third Review F21
(no answers)
Fourth Review S16
(no answers)
Fourth Review F20
(no answers)
Fourth Review F21
(no answers)
Study Guides Review 1      
Review Cover Page Review 1      

Instructor: David N. Blauch
If you have any questions about the course material or the laboratory program, you may contact me at dablauch@davidson.edu

Last updated Thursday September 07 2023