1. Let’s Review: the Tools of Quantitative Chemistry

8min

1.1.1. SI Units

1.2.1. Significant Digits7 min

1.2.2. Example56 sec

1.3.1. Dimensional Analysis

2. Basic Concepts of Chemistry

42min

2.1.1. The Scientific Method

2.2.1. Phases of Matter3 min

2.2.2. Kinetic Molecular Theory 7 min

2.2.3. Classifying Matter9 min

2.3.1. Physical Properties 5 min

2.4.1. Extensive vs Intensive Properties3 min

2.5.1. Chemical vs Physical Changes2 min

2.5.2. Practice

2.6.1. Energy: Some basic principles5 min

2.6.2. Practice

2.6.3. Practice

2.6.4. Practice

2.7.1. Temperature Scales2 min

2.7.2. Example7 min

3. Atoms, Molecules, & Ions

2.9hr

3.1.1. Review of Previous Atomic Models 12 min

3.2.1. The Atom and its Subatomic Particles4 min

3.2.2. Example4 min

3.2.3. Practice2 min

3.3.1. Isotopes and Atomic Mass5 min

3.3.2. Example2 min

3.3.3. Practice6 min

3.3.4. Practice9 min

3.4.1. Isotopes and the Mass Spectrometer

3.5.1. The Periodic Table of Elements9 min

3.5.2. Practice2 min

3.6.1. Additional Notes on Periodic Groups 15 min

3.7.1. Introduction to Intramolecular Bonds4 min

3.7.2. Types of Intramolecular Bonds14 min

3.8.1. Lattice Energy (Property of Ionic Bonds)6 min

3.9.1. Naming Compounds11 min

3.10.1. Types of Solids7 min

3.10.2. Types of Solids and Their Properties

3.10.3. Example20 sec

3.10.4. Example41 sec

3.10.5. Practice

3.11.1. Moles9 min

3.11.2. Example8 min

3.11.3. Practice5 min

3.11.4. Practice

3.12.1. Mass Percentage2 min

3.12.2. Example

3.12.3. Practice

3.13.1. Empirical Vs Molecular Formulas1 min

3.13.2. Example

3.13.3. Example #17 min

3.13.4. Example #25 min

3.13.5. Practice

3.13.6. Practice

4. Chemical Reactions

2.7hr

4.1.1. Balancing Reactions3 min

4.1.2. Reaction Stoichiometry8 min

4.1.3. Example

4.1.4. Polyatomic Ions 1 min

4.1.5. Example1 min

4.1.6. Practice4 min

4.2.1. Introduction to Equilibrium 2 min

4.2.2. Understanding Equilibrium3 min

4.3.1. Solution Properties3 min

4.3.2. Solutions4 min

4.4.1. Electrical Conductivity of Aqueous Solutions 4 min

4.5.1. Polar and Non-Polar Solubilities6 min

4.5.2. Solution Terminology8 min

4.6.1. Solubility Chart 8 min

4.6.2. Example5 min

4.6.3. Example5 min

4.6.4. Practice

4.7.1. Three Ways to Write Out Chemical Reactions11 min

4.7.2. Practice

4.8.1. Definitions of Acids and Bases 3 min

4.8.2. Acids 2 min

4.8.3. Bases2 min

4.8.4. Neutralization Reactions

4.8.5. Relating Net Ionic Equations to Ionization of Acids and Bases8 min

4.9.1. Product Favoured Reactions Vs Reactant Favoured Reactions2 min

4.9.2. Combustion Reactions3 min

4.9.3. Classifying Reactions4 min

4.9.4. Example

4.10.1. Oxidation States7 min

4.10.2. Oxidation States - Additional Information5 min

4.10.3. Example3 min

4.10.4. Practice

4.10.5. Practice

4.11.1. Redox Reactions Theory8 min

4.11.2. Practice3 min

4.11.3. Practice49 sec

4.11.4. Practice

4.12.1. Balancing Redox Reactions-Half Reaction Method 18 min

4.12.2. Practice

4.13.1. Balancing Redox Reactions Using the Oxidation State Method (Not As Commonly Used)13 min

4.13.2. Practice

5. Stoichiometry: Quantitative Information about Chemical Reactions

1.9hr

6. Bonding & Molecular Structure

2.8hr

6.1.1. Drawing Lewis Structures 17 min

6.2.1. Lewis Structures of Acids2 min

6.2.2. Lewis Structures of Acids and Salts6 min

6.2.3. Example: Lewis Structures of Sulphuric Acid3 min

6.2.4. Example: Acids and Salts6 min

6.2.5. Practice: Acids and Salts2 min

6.3.1. Resonance Structures Theory7 min

6.3.2. Equivalent Vs Non-Equivalent Resonance Structures5 min

6.4.1. VSEPR Theory20 min

6.4.6. VSEPR and Molecular Shapes Cheatsheet

6.5.1. Review of Polar Covalent Bonds

6.5.2. Molecular Polarity 8 min

6.5.3. Example

6.5.4. Practice

6.5.5. Practice3 min

6.6.1. Properties of Covalent Bonds11 min

6.6.2. Example

6.6.3. Practice4 min

6.7.1. Bond Energies4 min

6.7.2. Practice

6.8.1. Lattice Energy3 min

6.8.2. Calculating Lattice Energy - Born-Haber Cycle

6.8.3. Practice: Calculating Lattice Energy4 min

7. The Structure of Atoms

4hr

7.1.1. Electromagnetic Spectrum2 min

7.1.2. Photon Equations5 min

7.1.3. Photon Equations (Cntd.)9 min

7.2.1. The Photoelectric Effect8 min

7.2.2. The Photoelectric Effect Equation11 min

7.2.3. Example5 min

7.2.4. Practice3 min

7.2.5. Practice5 min

7.3.1. The Basics of Absorption and Emission Spectra3 min

7.3.2. Bohr's Atomic Model 12 min

7.3.3. Absorption vs Emission of a Photon3 min

7.3.4. Example4 min

7.3.5. Example3 min

7.4.1. Bohr Model Equations8 min

7.4.2. Example4 min

7.4.3. Example8 min

7.4.4. Practice 6 min

7.5.1. The Bohr Model and Atomic Line Spectra7 min

7.5.2. Electromagnetic Radiation and Atoms8 min

7.5.3. Example4 min

7.5.4. Practice

7.5.5. Practice1 min

7.6.1. Wave-Particle Duality 8 min

7.6.2. Example1 min

7.6.3. Practice

7.6.4. Practice3 min

7.7.1. The Bohr Model Vs The Quantum Model6 min

7.8.1. The Heisenberg Uncertainty Principle5 min

7.8.2. Example3 min

7.8.3. Practice4 min

7.9.1. Schrodinger's Equation3 min

7.10.1. Standing Waves & Particle in a 1-D Box5 min

7.10.2. Example

7.10.3. Example43 sec

7.10.4. Practice3 min

7.11.1. Quantum Numbers11 min

7.11.2. Quantum Numbers Cheatsheet

7.11.3. Example3 min

7.11.4. Example5 min

7.11.5. Example1 min

7.11.6. Practice1 min

7.12.1. Shapes (aka Boundary Diagrams) of Atomic Orbitals7 min

7.12.2. Drawing Atomic Orbitals7 min

7.12.3. Example3 min

7.12.4. Practice

8. The Structure of Atoms & Periodic Trends

4hr

8.1.1. Relative Energies of Atomic Orbitals11 min

8.1.2. Rules for Orbital Filling10 min

8.2.1. Electronic Configurations of Atoms11 min

8.2.2. Electron Configurations Cheatsheet

8.2.3. Electron Configuration Exceptions5 min

8.3.1. Electron Configurations of Ions of Main Group Elements9 min

8.3.2. Electron Configuration of Ions of Transition Elements2 min

8.3.3. Example5 min

8.3.4. Example5 min

8.3.5. Practice3 min

8.4.1. Diamagnetic Vs Paramagnetic 7 min

8.4.2. Example8 min

8.4.3. Practice

8.5.1. Effective Nuclear Charge 9 min

8.5.2. Example1 min

8.5.3. Practice2 min

8.6.1. Atomic Radius7 min

8.6.2. Atomic Radius Theory7 min

8.6.3. Example2 min

8.6.4. Example3 min

8.6.5. Practice1 min

8.7.1. Ionization Energy 5 min

8.7.2. Comparing 1st, 2nd, and 3rd Ionization Energies9 min

8.7.3. Practice2 min

8.7.4. Practice2 min

8.7.5. Practice5 min

8.8.1. Electron Affinity 10 min

8.8.2. Example2 min

8.8.3. Practice2 min

8.8.4. Practice4 min

8.9.1. Electronegativity 4 min

8.9.2. Example47 sec

8.9.3. Practice3 min

8.10.1. Periodic Trends Theory2 min

8.10.2. Example5 min

8.10.3. Practice4 min

8.10.4. Practice7 min

8.10.5. Practice2 min

8.11.1. Exceptions to Periodic Trends Introduction3 min

8.11.2. Exceptions to Periodic Trends Examples10 min

8.11.3. Exceptions to Periodic Trends Summary2 min

8.11.4. Example3 min

8.11.5. Practice4 min

9. Valence Bond Theory

29min

9.1.1. Introduction to Valence Bond Theory Theory6 min

9.1.2. Valence Bond Theory and Hybridization11 min

9.1.3. Example: Valence Bond Description of O

_2

and N

_2

4 min

9.1.4. Example: Drawing Orbital Overlap Diagrams7 min

10. Gases and Their Properties

2.4hr

10.1.1. Phases of Matter3 min

10.2.1. Kinetic Molecular Theory 7 min

10.3.1. The Ideal Gas Law5 min

10.3.2. Example2 min

10.3.3. Example7 min

10.3.4. Practice8 min

10.4.1. Gas Laws11 min

10.4.2. Example5 min

10.4.3. Practice3 min

10.4.4. Practice

10.5.1. Applications of the Ideal Gas Law3 min

10.5.2. Standard Molar Volume 5 min

10.5.3. Example10 min

10.5.4. Practice4 min

10.5.5. Practice

10.5.6. Practice

10.6.1. Real Gases and the Van der Waals Equation16 min

10.6.2. Real Gases vs Ideal Gases & the Compressibility Factor5 min

10.6.3. Example4 min

10.6.4. Example

10.6.5. Practice

10.7.1. Gas Mixtures & Partial Pressures6 min

10.7.2. Example2 min

10.7.3. Practice4 min

10.7.4. Practice

10.8.1. Diffusion & Effusion7 min

10.8.2. Practice4 min

10.8.3. Practice

10.9.1. Relationships Between Kinetic Energy, Temperature, and Speeds!9 min

10.9.2. Root Mean Squared Speed Equation3 min

10.9.3. Example5 min

10.9.4. Example5 min

10.9.5. Practice1 min

10.9.6. Practice

Mock Exams

ME.1. Midterm Exam - Mock Assessment36 Qns

ME.2. Final Examination - Mock Assessment80 Qns

CHEM 205

Course Overview

1. Let’s Review: the Tools of Quantitative Chemistry

2. Basic Concepts of Chemistry

3. Atoms, Molecules, & Ions

4. Chemical Reactions

5. Stoichiometry: Quantitative Information about Chemical Reactions

6. Bonding & Molecular Structure

7. The Structure of Atoms

8. The Structure of Atoms & Periodic Trends

9. Valence Bond Theory

10. Gases and Their Properties

Mock Exams

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Welcome to the Chemistry Course for Concordia 205 students!