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OCR Chemistry: Home

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Bonding

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Periodicity

10 lessons • 1h35

A: Acids, Bases & Buffers

20 lessons • 2h54

A: Redox & Electrode Potentials

16 lessons • 2h20

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Progress Overview

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Basic Atomic Structure
Isotopes
Ions
Relative Atomic Mass
Relative Molecular Mass & Relative Formula Mass
Mass Spectra Examples & Calculations
Calculating an Unknown Isotopic Mass
Mass Spectra - Diatomic Elements
Common Ions & Predicting Charges
Writing Formulae
Balancing Equations
Stoichiometry
The Mole & Avogadro's Constant
The Mole & Mass
Calculations & Stoichiometry
Moles & Mass Questions (1,2&3)
Finding .xH2O Calculation
The Mole & Solutions
Moles & Solutions Questions (1&2)
Finding the Limiting Reagent
Molar Gas Volume
The Ideal Gas Equation Explained
Ideal Gas Equation Questions (1&2)
Empirical and Molecular Formulae
% Composition by Mass
% Atom Economy
% Yield
Acids (Strong Vs Weak)
Bases & Alkalis
Common Acids & Bases
Neutralisation Reactions
Oxidation Numbers / States
Deducing Oxidation States
REDOX Equations
REDOX Half Equations
Combining Half Equations
REDOX in Acidic Conditions
Ionic Equations
Electron Orbitals
Writing Electronic Configurations
Electrons in Boxes
Electronic Configurations of Ions
Ionic Crystal Structure & Bonding - NaCl
Ionic Crystal Structure & Properties
The Covalent Bond
The Coordinate Bond
More Complex Dot & Cross Diagrams
V.S.E.P.R. - Intro
Shapes & Bond Angles
Finding Shapes of Unknowns - Episode 1 &2
Bond Angles in Larger Molecules
Electronegativity
Permanent Dipole Forces
Induced Dipole Forces
Molecular Crystal Structure - Iodine
Hydrogen Bonding
Molecular Crystal Structure - Ice
Spotting IMFs - Comparing Compounds
Simple Molecular Compounds & Properties
How The Periodic Table Works
Trends Across Period 3
Metallic Crystal Structure
Giant Covalent Structure - Carbon
1st Molar Ionisation Energy
1st I.E.s Down a Group
1st I.E.s Across a Period
1st Molar I.E.s Across a Period - The Exceptions
Successive I.E.s
1st Molar I.E.s - The Graph!
Group 2 Properties & Trends
Group 2 & Water
Group 2 & Oxygen / Dilute Acids
Group 2 Salts - Solubility & Tests
Uses of Group 2 Compounds
pH of Group 2 Oxides
Group 7 Properties & Trends
Group 7 REDOX
Testing for Halide Ions
Reactions of Chlorine
Testing for Ions
Enthalpy (H) & Enthalpy Change (ΔH)
Enthalpy Change (ΔH) - The Reactions
Energy Profile Diagrams
Calorimetry (Q = mcΔT)
Calorimetry - Alternative Calculation
Calorimetry - Finding ΔH Neutralisation
Calorimetry - Finding ΔH Combustion
Hess’ Law
Hess’ Law - Using Enthalpy of Formation (ΔHf)
Hess’ Law - Enthalpy of Combustion (ΔHc)
Hess’ Law - Example Calculations (1&2)
Constructing Hess' Cycles Using Unknowns
Mean Bond Enthalpies
The Maxwell-Boltzmann Distribution Curve
Maxwell-Boltzmann & Concentration
Maxwell-Boltzmann & Temperature
Maxwell-Boltzmann & Catalysts
How Catalysts Work
The Benefits of Catalysts
Dynamic Equilibria
Le Chatelier's Principle
Changes in Concentration
Changes in Pressure
Changes in Temperature
The Haber Process - Equilibria
The Kc Expression
Kc - Deducing Amounts at Equilibrium
Kc Calculations - Number & Units
Kc Calculations - Example Questions (1&2)
Carbon Chemistry
Single Bond Rotation
Functional Groups (Year 1 / AS)
Organic Formulae
IUPAC Nomenclature
The Numbering System
Key Terms in Organic Chemistry 1 & 2
Types of isomerism
Organic Reaction Key Terms
Organic Mechanisms
Alkanes - Properties
Structural Isomers
Cyclical Alkanes
Combustion of Alkanes
Combustion - Environmental Impact
Free Radical Substitution
Alkenes - Properties
The C=C Double Bond
Testing for Alkenes
Geometrical Isomers
Naming Geometrical Isomers
Electrophilic Addition Mechanism
Markovnikov's Rule (Asymmetrical Alkenes)
Hydrogenation & Hydration
Addition Polymerisation
Waste Polymers
Alcohols - Properties
Producing Alcohols
Combustion of Alcohols & Biofuels
Oxidation of Primary Alcohols
Oxidation of Secondary & Tertiary Alcohols
Dehydration of Alcohols (Elimination)
Substituting -OH for a Halogen
Halogenoalkanes - Properties
Testing for Halogenoalkanes
Nucleophilic Substitution Mechanism - Forming Alcohols
Relative Ease of Substitution
Measuring the Rate of Hydrolysis
Ozone
Ozone & NO
AS Organic Synthesis - Cheat Sheet
Organic I.D. - Test Tube Reactions 1&2
Mass Spectra for Organic Molecules - Fragmentation
Infrared Spectroscopy
Infrared Spectroscopy Examples
Uses of IR Spectroscopy
IR Absorption & Global Warming
Calculating Errors in Chemistry
Measure the Molar Volume of a Gas (Required Practical 1a)
Gravimetric Analysis (Finding .xH2O) (Required Practical 1b)
Making a Standard Solution (Required Practical 2a)
Setting up a Titration
Performing an Acid-Base Titration (Required Practical 2b)
Acid-Base Titration Calculations
Back Titrations
Back Titration Calculations
Measuring ΔHc (Required Practical 3a)
Measuring ΔHn (Required Practical 3b)
Testing for Inorganic Ions (Required Practical 4)
Refluxing (Required Practical 5a)
Separation Techniques (Required Practical 5b)
Distillation (Required Practical 5c)
Orders of Reaction
Finding Orders Using Data (1&2)
Finding Orders Using Conc Vs Time Graph
Half-Life
Half-Life & K (The Rate Constant)
The Rate Equation
Using the Rate Equation
The Rate Equation & Rate-Determining Step
Understanding the Arrhenius Equation
The Arrhenius Equation - The Graph
The Kp Expression
Kp - Numbers & Units
Deducing Mole Fractions & Partial Pressures
Definitions of Acids & Bases
Conjugate Acid-Base Pairs
Calculating pH - Intro
Calculating pH - Strong Acids
Calculating Concentration - Strong Acids
Weak Acids - Ka
Calculating pH - Weak Acids
Calculating Concentration - Weak Acids
Calculating pH - Strong Bases
Calculating Concentration - Strong Bases
Kw - Ionic Product of Water
pKa & pKw
How pH Curves Work
Types of pH Curve
What pH Curves can tell you (Finding Ka)
How Acid Buffers Work
Calculating pH of an Acid Buffer
Acid Buffer pH Example Calculation
Acid Buffer Component Calculation
Buffer Action in Blood
Lattice Enthalpy
ΔH's You Need To Know
Born-Haber Cycles Explained
Born-Haber Example - MgO & CaBr2
Calculating Enthalpy of Solution
Enthalpy of Solution Example Questions (1&2)
Entropy of a System (ΔS system)
Gibbs Free Energy (ΔG)
Gibbs Free Energy (ΔG) Calculations (1&2)
The Graph: ΔG vs T
The Fe 2+ / Permanganate Titration
The Thiosulfate / Iodine Titration
Half Cells & Half Equations
Combining Half Cells - Conventions
The Standard Hydrogen Electrode
Half-Cells of Ions in Solution
The Electrochemical Series
Calculating EMF
Effect of Changing Conditions
Predicting Reactions
Predicting the Feasibility of Reactions
The Lithium Ion Battery
Storage Cells
Fuel Cells
The Hydrogen Fuel Cell
Benefits & Risks of the Hydrogen Fuel Cell
Characteristics of Transition Metals
General Trends in Transition Metal Oxidation States
Ligands & Complexes
Bidentate Ligands
Shapes of Complex Ions
Isomerism in Monodentate Complexes
Isomerism in Bidentate Complexes
Copper Complexes
Chromium Complexes
Importance of Iron in Haemoglobin
REDOX Reaction - Fe2+ & Permanganate
REDOX Reaction - Fe3+ & Iodide Ions
REDOX Reaction - Cr3+ & Hydrogen Peroxide
REDOX Reaction - Dichromate & Zinc
REDOX Reaction - Cu2+ & Iodide Ions
Precipitation Reactions (w/NaOH)
Precipitation Reactions (w/NH3)
Benzene Structure
Evidence for Benzene Structure
Benzene Vs Alkenes - Reactivity
Electrophilic Substitution Mechanism - Halogenation
Electrophilic Substitution Mechanism - Nitration (& Reduction to phenylamine)
Electrophilic Substitution Mechanism - Acylation
Naming Substituted Benzene Compounds
Phenol - Ease of Substitution
Acidity of Phenol
Electron Donating & Withdrawing Groups
Aldehyde & Ketone Chemistry & Oxidation
Reduction of Aldehydes & Ketones
Aldehydes + HCN
Ketones + HCN
Nucleophilic Addition - Chiral Products
Testing for Aldehydes & Ketones
Distinguishing Aldehydes & Ketones (Tollen's Reagent)
Carboxylic Acid Structure & Chemistry
Reactions of Carboxylic Acids
Producing Esters (Esterification)
Acid Anhydrides + Alcohols
Hydrolysis of Esters
Reactions of Acyl Chlorides
Amine Structure & Chemistry
Producing Amines
Amines + Acids
Amino Acid Structure
Polymerisation of Amino Acids
Hydrolysis of Amino Acids
Amides
Optical Isomers & Chirality
Enantiomers & Polarimetry
Polyesters
Polyamides
Hydrolysis - A Reminder!
Comparing Addition & Condensation Polymers
Haloalkanes + KCN (Nucleophilic Substitution)
Carbonyls + HCN (Nucleophilic Addition)
Hydrolysis & Reduction of Nitriles
Friedel-Crafts Acylation
A Level Organic Synthesis - Cheat Sheets
Thin Layer Chromatography
Gas Chromatography
H-NMR Spectroscopy
Understanding H-NMR Spectra
H-NMR Example Spectra 1&2
Addition of D2O
Carbon-13 NMR
Producing Aspirin (Required Practical 6a)
Thin Layer Chromatography (Required Practical 6b)
Determination of Melting Point (Required practical 6c)
Testing for Organic Compounds (Required practical 7)
Electrochemical Cells (Required Practical 8)
Gas Collection Method - Continuous Rate (Required Practical 9a)
Loss in Mass Method - Continuous Rate (Required Practical 9b)
Iodine Clock - Initial Rate (Required Practical 10)
REDOX Reaction - Thiosulfate + Iodine
pH Measurement / pH Curves (Required Practical 11)
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3
AS Paper 1
AS Paper 2
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3
AS Paper 1
AS Paper 2
A Paper 1
A Paper 2
A Paper 3

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Wednesday 4th December

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Monday 9th December

  • 5pm | Balancing Redox Equations (A Level)

Wednesday 11th December

  • 5pm | Ionisation Energy-Trends (AS)
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Monday 16th December

  • 5pm | Redox Titrations (A Level)

Wednesday 18th December

  • 5pm | Periodicity Trends (AS)
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Year 12 - AS Year 13 - A Level Resit Students
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