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CHEM101: General Chemistry I

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Practice: Converting Units

Course Introduction

Course Syllabus

Unit 1: Matter and Measurements

1.1: Matter

Extensive and Intensive Properties

Physical and Chemical Properties

Solids, Liquids, and Gases

Density and Its Uses

Calculations Using the Density of an Unknown Liquid

How Do We Classify Matter?

Physical and Chemical Changes

1.2: Measurement and Notation

Units and Dimensions in Chemistry

Introduction to Scientific Notation

Practice: Converting Units

Uncertainty Is Certain!

Significant Figures

Using Significant Figures

Significant Figure Practice

Unit 1 Assessment

Unit 1 Assessment

Unit 2: The Atom

2.1: Atoms and Elements

Atoms, Elements, and the Nucleus

The Nuclear Atom and Atomic Mass

2.2: Avogadro's Number and Moles

Avogadro's Number and the Mole

Atoms to Moles

2.3: Atomic Theories

Quanta: A New View of the World

Light, Particles, and Waves

The Bohr Model

The Quantum Mechanical Model of the Atom

The Quantum Atom

2.4: The Periodic Table of the Elements

Shells, Subshells, and Orbitals

Electron Configurations

The Aufbau Principle

Atomic Electron Structures: Aufbau

Valence Electrons

Periodic Properties of the Elements

Unit 2 Assessment

Unit 2 Assessment

Unit 3: Bonding

3.1: Chemical Bonds

What are Covalent and Ionic Bonds?

Ionic, Covalent, and Metallic Bonds

Predicting Bond Type – Electronegativity

Models of Chemical Bonding

Drawing Dot Structures and Lewis Diagrams

Exceptions to the Octet Rule

Resonance Hybrids and Dot Structures

Formal Charge and Dot Structures

The Shared-Electron Covalent Bond: Lewis Dot-Structures and the Octet Rule

Interactions Between Molecular Units

3.2: Molecular Structure

Molecular Geometry

VSEPR Practice

The Hybrid Orbital Model

Polar Covalence

Unit 3 Assessment

Unit 3 Assessment

Unit 4: Chemical Formulas and Equations

4.1: Chemical Formulas

Chemical Formulas and Their Arithmetic

Empirical and Molecular Formulas

Formula from Mass Composition

Calculating Mass Percent

Molecular and Empirical Formulas from Percent Composition

Chemical Nomenclature

4.2: Stoichiometry and Limiting Reagents

Chemical Equations and Calculations

Calculating Molar Mass and Number of Moles

Balancing Chemical Reactions

Stoichiometry

Stoichiometry Example Problems

Calculating Amounts of Reactants and Products

Unit 4 Assessment

Unit 4 Assessment

Unit 5: States of Matter

5.1: Gases and Gas Laws

Observable Properties of Gases

The Basic Gas Laws

Gas Molecules in Motion

The Ideal Gas Equation

Charles' Law, Boyle's Law, and Avogadro's Law

Partial Pressure

Kinetic-Molecular Theory

5.2: Phase Changes

States of Matter

Specific Heat, Heat of Fusion and Vaporization

Chilling Water Problem

Change of State Example

Phase Diagrams

Phases, Changes of State

Liquids and Their Interfaces

Vapor Pressure

Vapor Pressure Example

Ionic and Ion-derived Solids

Cubic Crystal Lattices and Close-Packing

Unit 5 Assessment

Unit 5 Assessment

Unit 6: Thermochemistry and Thermodynamics

6.1: Energy

Energy, Heat, and Work

Molecules as Energy Carriers and Converters

Enthalpy

Heat of Formation

Calculate Standard Enthalpy of Reaction

Thermochemistry and Calorimetry

Coffee Cup Calorimetry

Hess' Law Example

Hess’ Law and Thermochemical Calculations

Calculate Standard Enthalpy of Reaction from Bond Dissociation Energies

6.2: Thermodynamics

The First Law of Thermodynamics

What is Entropy?

The Availability of Energy

Thermodynamics

Gibbs Free Energy and Spontaneity

Free Energy: The Gibbs Function (Gibbs Energy)

Gibbs Free Energy Example

Unit 6 Assessment

Unit 6 Assessment

Unit 7: Acid-Base and Oxidation-Reduction Reactions

7.1: Acids and Bases

What are Acids and Bases?

Arrhenius' Definition of Acids and Bases

Aqueous Solutions, pH, and Titration

Acid-Base Neutralization Reaction

Definition of pH

Strong Acids and Strong Bases

Ka and Acid Strength

Titration Introduction

Bronsted-Lowry Definition of Acids and Bases

Proton Donors and Acceptors

Autoionization of Water

Conjugate Acids and Bases

7.2: Oxidation-Reduction Reactions

Redox Reactions

Oxidation Numbers and Redox Reactions

Balancing Redox Equations

Write a Balanced Redox Reaction

Common Oxidizing and Reducing Agents

Unit 7 Assessment

Unit 7 Assessment

Unit 8: Nuclear Chemistry

8.1: Types of Nuclear Decay

Radioactive Decay

Alpha Decay

Beta Decay

Types of Decay

Writing Nuclear Equations for Alpha, Beta, and Gamma Decay

8.2: The Half-Life of Radioactive Isotopes

Half-Life

Carbon Dating

8.3: Nuclear Fusion, Nuclear Fission, and Energy Production

Transmutation of the Elements

The Mass Defect

Nuclear Fission

How Does a Nuclear Reactor Work?

Nuclear Fusion

Nuclear Energy

More on Nuclear Energy

Unit 8 Assessment

Unit 8 Assessment

Study Guide

CHEM101 Study Guide

Course Feedback Survey

Course Feedback Survey

Certificate Final Exam

CHEM101: Certificate Final Exam

Saylor Direct Credit

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CHEM101: General Chemistry I
Unit 1: Matter and Measurements
1.2: Measurement and Notation
Practice: Converting Units

Practice: Converting Units

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Saylor Academy © 2010-2025 except as otherwise noted. Excluding course final exams, content authored by Saylor Academy is available under a Creative Commons Attribution 3.0 Unported license. Third-party materials are the copyright of their respective owners and shared under various licenses. See detailed licensing information. Saylor Academy®, Saylor.org®, and Harnessing Technology to Make Education Free® are trade names of the Constitution Foundation, a 501(c)(3) organization through which our educational activities are conducted.