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Welcome to! Chemistry Help, through Chemistry Video Notes and pdf Notes for AP Chemistry, High School Chemistry, College Chemistry and General Chemistry Courses, is provided as found on Mr. Griffith's school website.  These Chemistry Lecture Notes can be used as a Chemistry Study Guide, since all of the major Chemistry Topics are covered.  Although the Chemistry Notes on this page are arranged for a Regular High School Chemistry course, the additional page can be used for AP Chemistry Notes, Honors Chemistry Notes, or General College Chemistry Notes. 

Regular High School Chemistry Notes are below.    

(For Honors, AP and College Chemistry Notes click on this link.

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 Regular High School Chemistry Notes   

Semester 1
Unit 1: Foundations
Significant Figures and Rounding Significant Figures, Conversions, Temperature Conversions, Density, States of Matter, Heterogeneous/Homogeneous, Physical/Chemical Characteristics/Changes.

Notes: Unit 1 pdf notes, step by step Significant Figures (without highlighting), step by step Conversions (without highlighting).

Video Notes: How to use your calculator #1 #2 #3 #4 #5 #6 #7

Tables: Periodic Table, Periodic Table with Groups, Conversion Factors, Conversion Flashcards.

Photos of Chemists to go with the notes.

Print 2, 4 or more pages on a single sheet: Check in the print window for "printing multiple pages per sheet".  It may be in the "page scaling" or "properties" (or look in the "help" section).  Also check the box for "print page borders".


Unit 2: Laws, Properties & Mols
Atomic Laws, Atomic Models, Calculate Number of Protons/Neutrons/Electrons, Properties of Metals/Non-metals/Metalloids, Naming & Formulas of Ionic and Covalent Compounds, Calculating Atomic Mass, Gram & Mole & Molecule Calculations.

Notes: Unit 2 pdf notes, step by step Writing & Naming Compounds (without highlighting).

Video Notes: #10 #11 #12 #13 #14 #15

Table: Common Ions, Ion Flashcards.


Unit 3: Stoichiometry
Percent Composition, Empirical Formula, Hydrates, Balancing Chemical Reactions, 5 Types of Chemical Reactions, Stoichiometry, Limiting Reagent, Percent Yield.

Notes: Unit 3 pdf notes, step by step Balancing Reactions (without highlighting), step by step Stoichiometry (without highlighting).

Video Notes: #18 #19 #20 #21 #22 #23 #24


Unit 4: Reactions in Solutions
Solvation, Electrolytes, Concentration: Molarity, Precipitation Reactions: Molecular, Acid & Base Reactions: Molecular, Acid & Base Titration, Oxidation Numbers, Redox: Oxidation & Reduction Reactions, Balancing Redox Reactions.

Notes: Unit 4 pdf notes, step by step Molecular Reactions (without highlighting), step by step Oxidation Numbers and Balancing Redox (without highlighting).

Video Notes: #27 #28 #29 #30 #31 #32 #33 #34

Table: Solubility Rules & Balancing Redox.


Unit 5: Gases
Pressure: Closed & Open Manometers, Ideal Gas Law and Variations: Boyle’s & Charles’ & Avogadro’s, Gas Density, Dalton’s Law of Partial Pressures (Gas Collected over Water problems), Gas Stoichiometry with 22.4 L, Kinetic Molecular Theory of Gases, Kinetic Energy, Root Mean Square Velocity, Graham’s Law of Effusion/Diffusion.

Notes: Unit 5 pdf notes.

Video Notes: #38 #39 #40 #41 #42 #43 #44

Table: Gas Constants, Derivation of 3/2RT Kinetic Energy equation from 1/2mv2.


Unit 6: Thermodynamics/Thermochemistry/Energy
Heat, Endothermic/Exothermic, 1st Law of  Thermodynamics, Calculating Internal Energy & Work & Heat, Calorimetry with Specific Heat Capacities & Molar Heat Capacities, Enthalpy of Reactions, Hess’s Law.

Notes: Unit 6 pdf notes, step by step Hess’s Law (without highlighting).

Video Notes: #47 #48 #49 #50


Semester 2:
Unit 7: Atomic Structure and Periodicity
Emission Spectra, Frequency & Wavelength Equation, Planck’s Equation, Einstein’s Photoelectric Effect, De Broglie’s Equation, Bohr Model for Hydrogen Electrons, Shrodinger’s Quantum Mechanics, Electron Orbitals, Electron Configurations, Orbital Diagrams: Pauli Exclusion Principle & Hund’s Rule, Periodicity,  Atomic Radius, Ionization Energy, Electron Affinity, Electronegativity, Most Active Metal/Non-metal.

Notes: Unit 7 pdf notes, step by step Electron Configurations and Orbital Diagrams (without highlighting).

Video Notes: #52 #53 #54 #55 #56 #57


Unit 8: Bonding
Bond Character, Most Polar Bonds, Coulomb’s Law, Repulsion Energy for Covalent Bonds, Calculating Enthalpy with Bond Energies, Localized Electron Model, Lewis Structures, Octet Rule, VSEPR, Resonance, Formal Charge, Lewis Dot Diagrams, Polarity, Hybridization, Multiple Bonds and Hybridization.

Notes: Unit 8 pdf notes, step by step Drawing Structures (without highlighting), step by step Polarity and Hybridization (without highlighting).

Video Notes: #60 #61Part1 #61Part2 #62Part1 #62Part2 #63Part1 #63Part2 #64 #65

Table: Molecular Structures/Names.


Unit 9: Solids/Liquids
Type of Solids & Type of Bonding (Interparticle Forces), Ionic, Types of Closest Packed Structures, Covalent: Dipole-Dipole & H-Bonding & London Dispersion Forces (LDF), Liquid Forces: Adhesive & Cohesive, Surface Tension, Viscosity, Relationship between Interparticle Force and Surface Tension & Viscosity & Boiling Point & Melting Point & Vapor Pressure, Solids: Crystals & Amorphous Solids, Cubic, Body Centered Cubic, Face Centered Cubic, Metallic Closest Packing, Electron Sea Model, Band or Molecular Orbit Model, Alloys, Network Solids, Doped Semiconductors, Group VIII, Phase Diagrams, Triple Point, Critical Point, Vapor Pressure, Change of State problems with Specific Heats and Enthalpy of Fusion/Vaporization, Vapor Pressure and Temperature,  Molarity, Molality, Mass Percent, Mol Fraction,  Solubility Factors: Polarity & Henry’s Law & Temperature, Raoult’s Law, Boiling Point Elevation/Freezing Point Depression, Osmotic Pressure with Van’t Hoff Factor, Colloids, Tyndall Effect, Brownian Motion, Aerosol, Foam, Emulsion.

Notes: Unit 9 pdf notes.

Video Notes: #67 #68 #69 #70 #71 #72 #73 #74 #75 #76 #77

Table: Solid Types and Forces, Types of Solids Periodic Tables.


Unit 10: Kinetics, Equilibrium, Energy and Electrochemistry
Reaction Rates, Integrated Rate Laws, Reaction Mechanisms, Chemical Kinetics/Collision Model, Transition State or Activated Complex, Activation Energy, Catalysts/Inhibitors, Equilibriums, Keq and Kp Equation, Equilibrium Problems at Equilibrium, Le Chatelier’s Principle with Concentration & Pressure & Temperature, Enthalpy, Gibb’s Free Energy, Entropy, Relationship between G, H & S, Gibb’s Free Energy and Equilibrium, Galvanic Cells.

Notes: Unit 10 pdf notes.

Video Notes: #80 #81 #82 #83 #84 #85 #86


Unit 11: Acids & Bases and Radiochemistry
Arrhenius Theory, Bronsted-Lowry Theory, Lewis Theory, pH scale, Finding pH &  pOH & [H+] & [OH-], Strong Acids, Weak Acids, Weak Bases, Strong Bases, Buffered Solutions/Common Ion Effect, Solubility Equilibriums (Ksp), Precipitation Reactions with Ksp, Nuclear Decay Reactions, Bombardments, First Order Half Lives, Nuclear Fission/Fusion, Nuclear Power Plants.

Notes: Unit 11 pdf notes, Step by Step Radioactive Decay & Bombardment.

Video Notes: #89 #90 #91 #92 #93 #94 #95 #96 #97


Unit 12: Introduction to Organic and Biochemistry
Naming Alkanes including Cycloalkanes, Naming Alkenes including Cycloalkenes, Cis/Trans Isomers, Aromatics, Naming Alkynes, Recognizing and Naming Functional Groups: Alcohols, Ethers, Aldehydes, Ketones, Carboxylic Acids, Esters, Amides, Amines, Biochemistry: Proteins, Carbohydrates, Lipids (Fatty Acids), Nucleic Acids, Cell Division, Protein Synthesis.

Notes: Unit 12 pdf notes.

Video Notes: #100 #101 #102




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