General Chemistry: Concept Development and Application

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About this course: This course will cover the topics of a full year, two semester General Chemistry course. We will use a free on-line textbook, Concept Development Studies in Chemistry, available via Rice’s Connexions project. The fundamental concepts in the course will be introduced via the Concept Development Approach developed at Rice University. In this approach, we will develop the concepts you need to know from experimental observations and scientific reasoning rather than simply telling you the concepts and then asking you to simply memorize or apply them. So why use this approach? One reason is that most of us are inductive learners, meaning that we like to make specific observ…

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When you enroll for courses through Coursera you get to choose for a paid plan or for a free plan

  • Free plan: No certicification and/or audit only. You will have access to all course materials except graded items.
  • Paid plan: Commit to earning a Certificate—it's a trusted, shareable way to showcase your new skills.

About this course: This course will cover the topics of a full year, two semester General Chemistry course. We will use a free on-line textbook, Concept Development Studies in Chemistry, available via Rice’s Connexions project. The fundamental concepts in the course will be introduced via the Concept Development Approach developed at Rice University. In this approach, we will develop the concepts you need to know from experimental observations and scientific reasoning rather than simply telling you the concepts and then asking you to simply memorize or apply them. So why use this approach? One reason is that most of us are inductive learners, meaning that we like to make specific observations and then generalize from there. Many of the most significant concepts in Chemistry are counter-intuitive. When we see where those concepts come from, we can more readily accept them, explain them, and apply them. A second reason is that scientific reasoning in general and Chemistry reasoning in particular are inductive processes. This Concept Development approach illustrates those reasoning processes. A third reason is that this is simply more interesting! The structure and reactions of matter are fascinating puzzles to be solved by observation and reasoning. It is more fun intellectually when we can solve those puzzles together, rather than simply have the answers to the riddles revealed at the outset. Recommended Background: The class can be taken by someone with no prior experience in chemistry. However, some prior familiarity with the basics of chemistry is desirable as we will cover some elements only briefly. For example, a prior high school chemistry class would be helpful. Suggested Readings: Readings will be assigned from the on-line textbook “Concept Development Studies in Chemistry”, available via Rice’s Connexions project. In addition, we will suggest readings from any of the standard textbooks in General Chemistry. A particularly good free on-line resource is Dickerson, Gray, and Haight, "Chemical Principles, 3rd Edition". Links to these two texts will be available in the Introduction module.

Created by:  Rice University
  • Taught by:  John Steven Hutchinson, Dean of Undergraduates and Professor of Chemistry

Language English How To Pass Pass all graded assignments to complete the course. User Ratings 4.6 stars Average User Rating 4.6See what learners said Coursework

Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.

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Syllabus


WEEK 1


Introduction



This lecture will cover the unique approach used in this course to the introduction of the fundamental concepts of Chemistry. The Concept Development Study approach was created, implemented, developed and refined at Rice over the course of more than twenty years. In this pedagogy, each new concept is developed from experimental observations and scientific reasoning. By contrast, most introductory Chemistry courses simply present each concept as an accepted fact, without foundation. This is why most Chemical concepts seem abstract and unapproachable. The CDS approach has been shown to more effective for most beginning students. I hope that this opening lecture will pique your curiosity about how you might learn Chemistry in a way which is more effective and more fun.


1 video, 1 reading expand


  1. Video: Introduction
  2. Reading: Course Info


Atomic Molecular Theory and Atomic Masses



Chemistry can be understood fundamentally as the study of atoms and molecules. In this module, we will examine the experiments which reveal that all matter is composed of atoms which combine to form molecules. The clever analysis of these experiments illustrates scientific reasoning at its finest, allowing us to understand the existence and properties of particles which could not be directly observed. In addition, by measuring the relative masses of the different types of atoms, we can begin to predict the ratios of masses of reactants and products during a chemical reaction.


7 videos expand


  1. Video: CDS 1 Atomic Molecular Theory I
  2. Video: CDS 1 Atomic Molecular Theory II
  3. Video: CDS 2 Atomic Masses and Molecular Formulas I
  4. Video: CDS 2 Atomic Masses and Molecular Formulas II
  5. Video: CDS 2 Atomic Masses and Molecular Formulas III
  6. Video: CDS 2 Atomic Masses and Molecular Formulas IV
  7. Video: CDS 2 Atomic Masses and Molecular Formulas V

Graded: Atomic Molecular Theory and Atomic Masses

WEEK 2


Structure of an Atom and the Electron Shell Model



Proving the existence of atoms and knowing that they combine to form molecules does not provide a means to predict how or why these atoms might combine. This requires greater detail about the structure and properties of individual atoms. In this module, we extend our understanding of atoms by making observations which reveal the internal structure of the atom including a model for the arrangement of the electrons around the atomic nucleus.


4 videos expand


  1. Video: CDS 3 Atomic Structure
  2. Video: CDS 4 Electron Shell Model of an Atom I
  3. Video: CDS 4 Electron Shell Model of an Atom II
  4. Video: CDS 4 Electron Shell Model of an Atom III

Graded: Structure of an Atom and Electron Shell Model

WEEK 3


Electron Energies and Orbitals



The electron shell model does not account for all of the observable properties of atoms, including the energies and motions of electrons. In this module, we observe that these energies are quantized. We also observe behaviors which reveal the surprising fact that electron motion is described by waves or “orbitals” which provide the probability for the movement of the electrons about the nucleus. This module takes us into the strange world of quantum mechanics.


4 videos expand


  1. Video: CDS 5 Quantum Energy Levels in Atoms I
  2. Video: CDS 5 Quantum Energy Levels in Atoms II
  3. Video: CDS 6 Electron Orbitals and Electron Configurations I
  4. Video: CDS 6 Electron Orbitals and Electron Configurations II

Graded: Quantum Electron Energy Levels in an Atom & Electron Orbitals and Electron Configurations in Atoms

WEEK 4


Bonding and Structures in Covalent Molecules



To understand the types of compounds which can be formed and the properties of those compounds, we have to understand how atoms bond together to form molecules. In this module, we develop a model for the bonding of non-metal atoms to non-metal atoms, called a covalent bond. The model can be used to predict which combinations of atoms are stable and which are unstable. Observations of the structures of the molecules lead to a model to understand molecular geometries and properties related to those geometries. From this, we build a foundation for understanding and predicting how molecular structure is related to molecular reactivity and function.


7 videos expand


  1. Video: CDS 7 Covalent Bonding and Electron Pair Sharing I
  2. Video: CDS 7 Covalent Bonding and Electron Pair Sharing II
  3. Video: CDS 7 Covalent Bonding and Electron Pair Sharing III
  4. Video: CDS 8 Molecular Structures I
  5. Video: CDS 8 Molecular Structures II
  6. Video: CDS 11 Molecular Geometry and Electron Domain Theory I
  7. Video: CDS 11 Molecular Geometry and Electron Domain Theory II

Graded: Bonding and Structures in Covalent Molecules

WEEK 5


Types of Bonding: Non-Metals, Metals, and Salts



In this module, we extend our model of bonding by observing properties of compounds formed between metals and non-metals. These properties reveal the existence of ionic bonds, which contrast to covalent bonds. We also consider the properties of pure metals and of metal compounds, leading to a model which explains the bonding between metals atoms. We develop a means to differentiate and predict the three types of bonding: covalent, ionic, and metallic.


6 videos expand


  1. Video: CDS 9 Energy and Polarity of Covalent Bonds I
  2. Video: CDS 9 Energy and Polarity of Covalent Bonds II
  3. Video: CDS 10 Metals and Salts I
  4. Video: CDS 10 Metals and Salts II
  5. Video: CDS 10 Metals and Salts III
  6. Video: CDS 10 Metals and Salts IV

Graded: Types of Bonding: Non–Metals, Metals, and Salts

WEEK 6


Energy Changes and Reaction Energies



Chemical reactions involve energy changes, most commonly with the transfer of heat into or out of the reaction. Many chemical reactions are performed specifically because of the release of heat or other forms of energy. In this module, we develop a means to measure these energy transfers and we use these measurements to develop laws which govern energy transfers. These laws permit us to calculate and predict energy changes during reactions and to understand the energy of a reaction in terms of the energies of the bonds between atoms breaking and forming during a reaction.


4 videos expand


  1. Video: CDS 12 Measuring Energy Changes in Chemical Reactions I
  2. Video: CDS 12 Measuring Energy Changes in Chemical Reactions II
  3. Video: CDS 13 Reaction Energy and Bond Energy I
  4. Video: CDS 13 Reaction Energy and Bond Energy II

Graded: Energy Changes and Reaction Energies

WEEK 7


Ideal Gas Law and the Kinetic Molecular Theory



One of the powers of chemistry is the ability to relate the properties of individual molecules to the physical and chemical properties of the compounds of these molecules. In other words, we want to relate the atomic molecular world to the macroscopic world of materials. We begin this study by observing the physical properties of gases and deriving an equation which relates these properties. From this law, we can devise a model which describes how these physical properties result from the properties and motions of individual molecules. Understanding the significance of temperature is a critical part of this study.


7 videos expand


  1. Video: CDS 14 Physical Properties of Gases I
  2. Video: CDS 14 Physical Properties of Gases II
  3. Video: CDS 14 Physical Properties of Gases III
  4. Video: CDS 14 Physical Properties of Gases IV
  5. Video: CDS 15 Kinetic Molecular Theory I
  6. Video: CDS 15 Kinetic Molecular Theory II
  7. Video: CDS 15 Kinetic Molecular Theory III

Graded: Ideal Gas Law and Kinetic Molecular Theory

WEEK 8


Phase Transitions and Phase Equilibrium



Substances can exist in different physical states, which we call “phases.” These include solid, liquid and gas. In this module, we study the transitions between these phases, which are observed to occur only at specific combinations of temperature and pressure. In addition, we observe that phases exist in equilibrium with one another at this specific temperatures and pressures. We develop from our observations a model to describe phase equilibrium using the concepts of the kinetic molecular theory deduced in the previous module.


7 videos expand


  1. Video: CDS 16 Phase Transitions and Equilibrium I
  2. Video: CDS 16 Phase Transitions and Equilibrium II
  3. Video: CDS 17 Phase Transitions and Intermolecular Forces I
  4. Video: CDS 17 Phase Transitions and Intermolecular Forces II
  5. Video: CDS 18 Phase Equilibrium in Solutions I
  6. Video: CDS 18 Phase Equilibrium in Solutions II
  7. Video: CDS 18 Phase Equilibrium in Solutions III

Graded: Phase Transitions and Phase Equilibrium

WEEK 9


Chemical Kinetics



Chemical reactions occur at very different rates, some occurring so slowly that we only notice them with great passing of time and some occurring explosively rapidly. In this module, we develop measurements of the rates of reaction, determining the factors which can make a reaction proceed more rapidly or more slowly. These observations are summarized in equations called Rate Laws, where each reaction has its own empirical rate law. By using kinetic molecular theory, we develop a model to understand how and why each factor in the rate law is important in determining the rate of a chemical reaction.


4 videos expand


  1. Video: CDS 20 Reaction Rate Laws I
  2. Video: CDS 20 Reaction Rate Laws II
  3. Video: CSD 21 Reaction Kinetics I
  4. Video: CDS 21 Reaction Kinetics II

Graded: Chemical Kinetics

WEEK 10


Chemical Equilibrium



Many chemical reactions are observed to “go to completion,” meaning that essentially all of the reactants are consumed in creating products within the constraints of the stoichiometry of the reaction. However, other chemical reactions do not go to completion. Rather, we observe that reactants and products can coexist simultaneously at specific observable concentrations or pressures. This equilibrium between reactants and products is observed to follow an equation called the equilibrium constant. In this module, we observe many examples of reactions at equilibrium, we measure their equilibrium constants, and we use these to make predictions about how to maximize the yield of chemical reactions. Included in these important reactions are those involving acids and bases.


9 videos expand


  1. Video: CDS 22 Reaction Equilibrium I
  2. Video: CDS 22 Reaction Equilibrium II
  3. Video: CDS 22 Reaction Equilibrium III
  4. Video: CDS 22 Reaction Equilibrium IV
  5. Video: CDS 23 Acid Ionization Equilibrium I
  6. Video: CDS 23 Acid Ionization Equilibrium II
  7. Video: CDS 23 Acid Ionization Equilibrium III
  8. Video: CDS 23 Acid Ionization Equilibrium IV
  9. Video: CDS 23 Acid Ionization Equilibrium V

Graded: Chemical Equilibrium

WEEK 11


Chemical Thermodynamics



One of the most subtle aspects of chemistry is in understanding the factors which make a chemical reaction favorable or unfavorable. In this module, we pursue this understanding by observing what makes a process “spontaneous,” and we develop the concept of entropy as a predictive tool for spontaneity. We observe the second law of thermodynamics, and from this, we develop a model for predicting chemical equilibrium based on a new quantity called the “free energy.” We conclude by relating the free energy to the equilibrium constant observed in a previous module, culminating in one of the most beautiful theories in all of science.


7 videos expand


  1. Video: CDS 25 Entropy and the Second Law I
  2. Video: CDS 25 Entropy and the Second Law II
  3. Video: CDS 25 Entropy and the Second Law III
  4. Video: CDS 26 Free Energy and Equilibrium I
  5. Video: CDS 26 Free Energy and Equilibrium II
  6. Video: CDS 26 Free Energy and Equilibrium III
  7. Video: Conclusions

Graded: Chemical Thermodynamics

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