I am a very experienced chemistry teacher and have produced many quality resources which have been extensively tested in the classroom. My resources aim to engage the students and lighten the planning load for the teacher. A distinctive feature is the use of unique images, often animated, to explain concepts. The resources include interactive PowerPoints, activities and games, quizzes, worksheets with answers and exam style questions. Please review my resources!
I am a very experienced chemistry teacher and have produced many quality resources which have been extensively tested in the classroom. My resources aim to engage the students and lighten the planning load for the teacher. A distinctive feature is the use of unique images, often animated, to explain concepts. The resources include interactive PowerPoints, activities and games, quizzes, worksheets with answers and exam style questions. Please review my resources!
Unique package of interactive PowerPoint and paper-based activities that can be used in the classroom or for revision or independent self-study. This resource covers AS and A2 infrared (IR) spectroscopy through a 26 slide interactive PowerPoint, which is colourful, animated and presents the information in a flexible way. Each PowerPoint slide contains links to other slides, to enable easy navigation and to emphasise links between different aspects of infrared spectroscopy.
As well as pages devoted to each of the key terms in infrared spectroscopy, the PowerPoint shows clearly how molecular vibrations occur and how they give rise to absorption peaks in the infrared spectrum. A method for interpreting infrared spectra is given, illustrated by several animated examples with spectra and structures to aid understanding of the process.
Also included is a graded worksheet with 9 pages, including problems where unknown structures are identified. Full answers are provided.
This resource was developed primarily for the OCR A level Chemistry specification but is useful for all specifications. It relates to the following sections :
AS: Module 4 – Core organic chemistry
Part 2 – Alcohols, haloalkanes and analysis
4.2.4 Analytical techniques
A2: Module 6 – Organic chemistry and analysis
Part 3 – Analysis
6.3.2 Spectroscopy (Combined techniques)
Please review!
Content covered
• introduction to spectroscopy linked to the electromagnetic spectrum
• meaning of wavenumber and transmittance
• molecular vibrations
• bond stretching
• fingerprint region of spectrum
• types and shapes of peaks
• infrared and global warming
• the greenhouse effect and greenhouse gases
• interpreting the infrared spectrum
• examples of IR spectra with animated explanation linking peaks to structure
• uses of infrared spectroscopy
Duration: 1-2 lessons and/or independent study
Links
See also Mass spectrometry A level home learning
https://www.tes.com/teaching-resource/mass-spectrometry-a-level-home-learning-12287938
Free resource - identifying compounds from infrared and mass spectra
https://www.tes.com/teaching-resource/identifying-compounds-from-infrared-and-mass-spectra-a-level-12325481
This bundle is ideal for classroom or home learning and covers the whole of the OCR A level chemistry specification sections 2.1.4 – Acids and 2.1.5 − Redox
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet and a lesson plan. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz. A practical activity on titration is also included.
This bundle is the third in a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.4 – Acids (whole)
2.1.5 Redox (whole)
Content covered
Acids and bases
• Definitions of acid, base, alkali and salt
• Formulae of acids, bases, alkalis and salts
• The relationship between bases and alkalis
• The pH scale
• Everyday examples of acids and bases
• Weak and strong acids
• Diprotic acids
• Writing and balancing neutralization reactions (including acid-carbonate reactions)
• Ionic equations
Acid-base titrations
• Titration and uses
• Standard solution
• Glassware and procedure for titration with detailed hints for technique
• Reading burette
• Recording titration results and calculating the mean
• Titration calculations
• Examples of structured and unstructured calculations
• Revision of calculations involving masses and volumes
• Practical titration activity
• Evaluation of titration experiment
• Uncertainties and calculating % uncertainties
• Procedural errors
Redox
• Redox definition in terms of electron transfer
• Oxidation numbers and how to calculate them
• Oxidation number in chemical names
• Redox definition in terms of oxidation number
• Using oxidation numbers to identify redox reactions and determine what has been oxidised and reduced
• Oxidising and reducing agents
• Disproportionation as oxidation and reduction of the same element
Links
Previous bundle:
Moles, masses, concentrations, gas volumes and reactions
https://www.tes.com/teaching-resource/moles-masses-concentrations-gas-volumes-and-reactions-12404451
Next bundle:
Electrons and bonding
https://www.tes.com/teaching-resource/electrons-and-bonding-ocr-as-chemistry-12605443
Next topic
Topic 14 – Electron configuration – shells, sub-shells and orbitals
https://www.tes.com/teaching-resource/electron-configuration-shells-sub-shells-and-orbitals-ocr-as-chemistry-12207312
This complete year 12 lesson on moles and gas volumes is ideal for classroom or home learning and features a 45 slide interactive PowerPoint that aims to illustrate the concepts in a visual way and includes starter, learning checks, example calculations, multiple choice quiz, and plenary. An 8 page worksheet, a lesson plan and answers to all exercises are provided.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.3 – Amount of substance
Content covered:
• Molar volume of a gas
• Moles and gas volume triangle
• Summary of relationships for gases between amount of substance, volume, mass and number of molecules
• Calculating amount of substance from volume of gas and vice versa
• Ideal gases
• The ideal gas equation
Duration: 1 lesson
Please review!
Links
Previous lesson: Topic 6 - Determining formulae
https://www.tes.com/teaching-resource/determining-formulae-ocr-as-chemistry-12347977
Next lesson: Topic 8 – Moles and solutions
https://www.tes.com/teaching-resource/moles-and-concentration-of-solutions-ocr-as-chemistry-12391026
Free resource - standard form, decimal places and significant figures
https://www.tes.com/teaching-resource/standard-form-decimal-places-and-significant-figures-a-level-chemistry-12405507
This complete year 12 lesson on intermolecular forces includes induced dipole-dipole interactions (London dispersion forces), permanent dipole-dipole forces and hydrogen bonding. For each type of intermolecular force there is an explanation of how they arise, what factors affect them and how they affect physical properties. The resource features a 58 slide animated PowerPoint that illustrates the concepts in a lively and visual way and includes a starter, learning checks, animations, clearly explained examples and a plenary multiple choice quiz. A 13 page worksheet and answers to the exercises are provided.
This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 2 – Electrons, bonding and structure
2.2.2 Bonding and structure
Content covered:
• What are intermolecular forces?
• Strengths of bonds and intermolecular forces
• Types of intermolecular forces
• Induced dipole-dipole interactions (London (dispersion) forces)
• How London forces arise
• Factors affecting strength of London forces
• Permanent dipole-dipole interactions
• How permanent dipole-dipole interactions arise
• How intermolecular forces affect properties
• Hydrogen bonding
• What’s special about hydrogen bonds
• Effects of hydrogen bonds on properties
• Special properties of water
• Summary of intermolecular forces
• Predicting the type of intermolecular forces
Duration: 1 lesson
Please review!
Links
Previous topic: Topic 18 – Electronegativity and bond polarity OCR AS Chemistry (free resource) https://www.tes.com/teaching-resource/electronegativity-and-bond-polarity-ocr-as-chemistry-12888524
Next topic: Topic 20 Structure and bonding
https://www.tes.com/teaching-resource/structure-and-bonding-ocr-as-chemistry-12933603
Unique package of interactive PowerPoint and paper-based activities that can be used for independenthome learning, revision or in the classroom. This resource covers AS chemistry of alcohols through a 19 slide interactive PowerPoint, which is colourful, animated and presents the information in a flexible way. Each PowerPoint slide contains links to other slides, to enable easy navigation and to emphasise links between the types of alcohol and the types of reaction.
As well as pages devoted to each of the main types of reaction (substitution, oxidation and elimination), primary, secondary and tertiary alcohols each have a page with a clear chart of numbered reactions, where each number is linked to a page detailing that reaction. Information given includes type of reaction, reagents and conditions and an equation, as well as key definitions. In addition the reactions have an animated mechanism or structural equation. There are links to pages describing and explaining practical techniques, where relevant.
Also included are two worksheets with a total of 8 pages. Full answers are provided.
This resource was developed primarily for the OCR AS Chemistry specification (year 12) but is useful for all specifications. It relates to the following sections :
Module 4 – Core organic chemistry
Part 2 – Alcohols, haloalkanes and analysis
4.2.1 Alcohols
Please review!
Content covered
• Naming alcohols
• Primary, secondary and tertiary alcohols
• Substitution reaction of alcohols
• Oxidation of alcohols
• Elimination (dehydration) reaction of alcohols
• Reactions of primary, secondary and tertiary alcohols
• Animated mechanisms
• Reaction classification
• Reagents and conditions
• Structural equations
• Key definitions
• Heating under reflux
• Distillation to prevent complete oxidation
Duration: 1-2 lessons and/or independent study
Please see also
***Mass spectrometry - A level ***
https://www.tes.com/teaching-resource/mass-spectrometry-a-level-self-study-12287938
***Infrared spectroscopy - A level ***
https://www.tes.com/teaching-resource/infrared-ir-spectroscopy-a-level-home-learning-self-study-12315096
Unique package of interactive PowerPoint and paper-based activities that can be used for independent home learning, revision or in the classroom. This resource covers AS and A2 mass spectrometry through a 25 slide interactive PowerPoint, which is colourful, animated and presents the information in a flexible way. Each PowerPoint slide contains links to other slides, to enable easy navigation and to emphasise links between different aspects of mass spectrometry.
As well as pages devoted to each of the key terms in mass spectrometry, the PowerPoint shows clearly how fragmentation occurs and how the breakage of a particular bond can result in the fragment of a particular mass. A method for interpreting mass spectra is given, illustrated by several examples with animated spectra and structures to aid understanding of the process.
Also included is a graded worksheet with 7 pages, including problems where an unknown structure is identified. Full answers are provided.
This resource was developed primarily for the OCR A level Chemistry specification but is useful for all specifications. It relates to the following sections :
AS: Module 4 – Core organic chemistry
Part 2 – Alcohols, haloalkanes and analysis
4.2.4 Analytical techniques
A2: Module 6 – Organic chemistry and analysis
Part 3 – Analysis
6.3.2 Spectroscopy (Combined techniques)
Please review!
Content covered
• animated diagram and description of a mass spectrometer
• meaning of m/z
• relative intensity
• base peak
• molecular ion
• M+1 peak
• fragments
• interpreting the mass spectrum
• mass spectrum of ethanol
• animations of formation of fragments from ethanol
• summary of fragments for ethanol
• examples of mass spectra with animated explanation linking peaks to structure
Duration: 1-2 lessons and/or independent study
See also Chemistry of alcohols – AS home learning
https://www.tes.com/teaching-resource/chemistry-of-alcohols-as-self-study-12273938
Infrared spectroscopy – A level home learning
https://www.tes.com/teaching-resource/infrared-ir-spectroscopy-a-level-home-learning-self-study-12315096
This bundle is ideal for classroom or home learning and covers electronegativity and bond polarity, intermolecular forces and structure and bonding. It includes part of the OCR A level chemistry specification section 2.2.2 and part of 3.1.1.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz.
Content covered:
Electronegativity and bond polarity
• Definition of electronegativity
• Atomic core and calculation of core charge
• Factors affecting electronegativity
• Pauling scale of electronegativity
• Electronegativity and bond polarity
• Non-polar and polar covalent bonds
• Electronegativity and bonding type (including intermediate bonding)
• Polarity of molecules from the bond polarities and the molecular shape
• Predicting whether a molecule will have an overall dipole from its symmetry
Intermolecular forces
• What are intermolecular forces?
• Strengths of bonds and intermolecular forces
• Types of intermolecular forces
• Induced dipole-dipole interactions (London (dispersion) forces)
• How London forces arise
• Factors affecting strength of London forces
• Permanent dipole-dipole interactions
• How permanent dipole-dipole interactions arise
• How intermolecular forces affect properties
• Hydrogen bonding
• What’s special about hydrogen bonds
• Effects of hydrogen bonds on properties
• Special properties of water
• Summary of intermolecular forces
• Predicting the type of intermolecular forces
Structure and bonding
• Factors influencing physical properties
• The way the atoms/ions are grouped together (structure)
• The type of particles the solid is built up from
• The bonds or forces holding these particles together
• Structure and physical properties of ionic compounds (see also topic 15)
• Structures and physical properties of covalent substances including giant covalent and simple molecular
• Diamond and graphite – structures and properties
• Graphene
• Metallic bonding, structure and physical properties
• Summary of types of bonding
• Jigsaw discussion to summarise 4 main types of structure and their properties
Links
Next lesson – free resource: Topic 21 – the Periodic Table past and present
https://www.tes.com/teaching-resource/periodic-table-past-and-present-ocr-as-chemistry-12964450
This complete year 12 lesson on ionic bonding includes dot-and-cross diagrams, giant ionic lattices and the physical properties of ionic compounds. It features a 51 slide animated PowerPoint that illustrates the concepts in a lively and visual way and includes a starter, learning checks, animations, clearly explained examples including dot-and-cross diagrams, and a plenary quiz. An 11 page worksheet and answers to the exercises are provided.
This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 2 – Electrons, bonding and structure
2.2.2 Bonding and structure
Content covered:
• Ionic bonding and the Periodic Table
• Predicting ionic formulae
• Definition of ionic bonding
• Dot-and-cross diagrams – some of them animated
• Half equations
• Giant ionic lattice
• Physical properties of ionic compounds including
o melting point
o electrical conductivity
o solubility in polar and non-polar solvents
Duration: 1-2 lessons
Please review!
Links
Previous topic: Topic 14 – Electron configuration – shells, sub-shells and orbitals OCR AS Chemistry
https://www.tes.com/teaching-resource/resource-12207312
Next topic: Topic 16 – Covalent bonding OCR AS Chemistry
https://www.tes.com/teaching-resource/resource-12605422
This bundle is ideal for classroom or home learning and covers the whole of the OCR A level chemistry specification module 2 - Foundations in Chemistry, sections 2.1 and 2.2.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet and a lesson plan. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz. A practical activity on titration is also included.
This bundle relates to the following sections of the OCR AS Chemistry specification:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions (whole)
2.1.1 – Atomic structure and isotopes
2.1.2 – Compounds, formulae and equations
2.1.3 – Amount of substance
2.1.4 – Acids
2.1.5 − Redox
Part 2 – Electrons, bonding and structure (whole)
2.2.1 – Electron structure
2.2.2 – Bonding and structure
Module 3 – The Periodic table and energy
Part 1 –The Periodic Table (part)
3.1.1 (Periodicity) (part)
Content covered:
The changing atom
How Science Works - HSW7 - The changing accepted models of atomic structure over time.
The contributions of five scientists to the development of the theory of atomic structure.
Atomic structure
• Protons, neutrons and electrons – mass and relative charge
• Atomic number and mass number
• Isotopes
• Key definitions
Atomic masses
• Relative masses - comparison of masses to carbon-12
• Calculating relative atomic mass from the masses and abundances of the isotopes
• Mass spectrometry and its use in the above
• Calculating relative molecular and relative formula masses from formulae
• Key definitions of relative atomic mass and relative isotopic mass
Formulae and equations
• Formulae of ions
• Predicting ionic charges from the Periodic Table
• Writing the formulae of ionic compounds and elements
• Writing and balancing equations
• Common types of reaction and their equations
Amount of substance and the mole
• Relative masses and the mole
• Avogadro constant
• Calculating number of atoms
• Amount of substance
• Molar mass
• Calculating amount of substance from total mass and vice versa
• Mole triangle
Determining formulae
• Definitions and use of the terms empirical and molecular formula
• Simplest whole number ratios
• Calculations of empirical and molecular formulae, from composition by mass or percentage compositions by mass and relative molecular mass
• Calculating % by mass from the formula
• The terms anhydrous, hydrated and water of crystallisation
• Calculation of the formula of a hydrated salt from given percentage composition, mass composition or based on experimental results
Moles and gas volumes
• Molar volume of a gas
• Moles and gas volume triangle
• Summary of relationships for gases between amount of substance, volume, mass and number of molecules
• Calculating amount of substance from volume of gas and vice versa
• Ideal gases
• The ideal gas equation
Moles, concentrations and solutions
• Definitions and use of the terms concentration and mass concentration
• Concentrated and dilute
• Relationship between concentration, amount in mol and volume including concentration triangle
• Calculating concentration, amount in mol, volume and mass from given data
• Example calculations
• Mass concentrations
• Choosing the correct glassware to measure volumes
• Standard solutions
• Practical activity – making up a standard solution
• Diluting solutions and calculations
• Practical activity – diluting solutions
Moles and reactions
• Balanced chemical equations and stoichiometry
• Molar ratios
• Using molar ratio to calculate amounts in moles of reactants and products in a chemical reaction
• Using molar ratio to calculate masses of reactants and products in a chemical reaction
• Using molar ratio to calculate volumes of gases in a chemical reaction
• Flow diagrams showing steps in calculations involving quantities of reacting substances
• Example calculations – clearly illustrated in a highly visual way
Percentage yield and atom economy
• Introduction to Green Chemistry
• Reasons why reactions do not have 100% yield
• % yield and how to calculate it
• Calculations of % yield involving limiting reactant
• Atom economy and its importance in the sustainability of a chemical process
• Calculating atom economy
• Example calculations – clearly illustrated in a highly visual way
• Differences between atom economy and % yield
• Comparing chemical processes in terms of sustainability (using production of ethanol as an example)
Acids and bases
• Definitions of acid, base, alkali and salt
• Formulae of acids, bases, alkalis and salts
• The relationship between bases and alkalis
• The pH scale
• Everyday examples of acids and bases
• Weak and strong acids
• Diprotic acids
• Writing and balancing neutralization reactions (including acid-carbonate reactions)
• Ionic equations
Acid-base titrations
• Titration and uses
• Standard solution
• Glassware and procedure for titration with detailed hints for technique
• Reading burette
• Recording titration results and calculating the mean
• Titration calculations
• Examples of structured and unstructured calculations
• Revision of calculations involving masses and volumes
• Practical titration activity
• Evaluation of titration experiment
• Uncertainties and calculating % uncertainties
• Procedural errors
Redox
• Redox definition in terms of electron transfer
• Oxidation numbers and how to calculate them
• Oxidation number in chemical names
• Redox definition in terms of oxidation number
• Using oxidation numbers to identify redox reactions and determine what has been oxidised and reduced
• Oxidising and reducing agents
• Disproportionation as oxidation and reduction of the same element
Electron configuration - shells, sub-shells and orbitals
• Energy levels
• Main shells, sub-shells and orbitals
• Rules for filling orbitals
• Electron configurations of atoms and ions
• Deducing electron configuration using the Periodic Table
• Relationship of electron configuration to the Periodic Table
Ionic bonding
• Bonding and the Periodic Table
• Predicting ionic formulae
• Definition of ionic bonding
• Dot-and-cross diagrams – some of them animated
• Half equations
• Giant ionic lattice
• Physical properties of ionic compounds including:
• melting point
• electrical conductivity
• solubility in polar and non-polar solvents
Covalent bonding
• Definition of a covalent bond
• Single, double and triple covalent bonds
• Lone pairs
• How to construct dot-and-cross diagrams
• Dative covalent or coordinate bonds
• The Octet Rule and exceptions
• Average bond enthalpies
Shapes of molecules and ions
• Electron pair repulsion theory (VSEPR)
• Effect of lone pairs on shape
• Model answer to exam question
• How to draw simple shapes in 3D
• Bond angles
Electronegativity and bond polarity
• Definition of electronegativity
• Atomic core and calculation of core charge
• Factors affecting electronegativity
• Pauling scale of electronegativity
• Electronegativity and bond polarity
• Non-polar and polar covalent bonds
• Electronegativity and bonding type (including intermediate bonding)
• Polarity of molecules from the bond polarities and the molecular shape
• Predicting whether a molecule will have an overall dipole from its symmetry
Intermolecular forces
• What are intermolecular forces?
• Strengths of bonds and intermolecular forces
• Types of intermolecular forces
• Induced dipole-dipole interactions (London (dispersion) forces)
• How London forces arise
• Factors affecting strength of London forces
• Permanent dipole-dipole interactions
• How permanent dipole-dipole interactions arise
• How intermolecular forces affect properties
• Hydrogen bonding
• What’s special about hydrogen bonds
• Effects of hydrogen bonds on properties
• Special properties of water
• Summary of intermolecular forces
• Predicting the type of intermolecular forces
Structure and bonding
• Factors influencing physical properties
• The way the atoms/ions are grouped together (structure)
• The type of particles the solid is built up from
• The bonds or forces holding these particles together
• Structure and physical properties of ionic compounds (see also topic 15)
• Structures and physical properties of covalent substances including giant covalent and simple molecular
• Diamond and graphite – structures and properties
• Graphene
• Metallic bonding, structure and physical properties
• Summary of types of bonding
• Jigsaw discussion to summarise 4 main types of structure and their properties
Links
Next lesson – free resource: Topic 21 – the Periodic Table past and present
http://www.tes.com/teaching-resource/periodic-table-past-and-present-ocr-as-chemistry-12964450
Unique package of interactive PowerPoint and paper based activities that can be used for independent work or in the classroom. This resource covers A level organic aliphatic and aromatic synthetic routes through two interactive PowerPoints, each based on a clear chart of numbered synthetic routes, where each number is linked to a page detailing that reaction. Information given includes type of reaction, reagents and conditions and an equation, as well as key definitions. In addition most reactions have an animated mechanism or structural equation. There are links to pages describing and explaining practical techniques, where relevant.
Includes two blank charts (one for aliphatic and one for aromatic) of the synthetic routes for printing (preferably A3 size), together with a blank table for practising types of reaction and reagents and conditions. Full answers are provided.
Please review!
Content covered
• A level synthetic routes – aliphatic and aromatic
• Extending carbon chain length (carbon-carbon bond formation)
• Animated mechanisms
• Key definitions
• Heating under reflux
• Distillation
• Reaction classification
• Reagents and conditions
• Structural equations
• Activated benzene rings
• Tests for functional groups
Duration: 1-3 lessons and/or independent study
Please see also AS organic synthesis
https://www.tes.com/teaching-resource/as-organic-synthesis-12254256
Unique package of interactive PowerPoint and paper based activities that can be used for independent work or in the classroom. This resource covers AS (year 12) organic synthetic routes through a 15 slide interactive PowerPoint that is based on a clear chart of numbered synthetic routes, where each number is linked to a page detailing that reaction. Information given includes type of reaction, reagents and conditions and an equation, as well as key definitions. In addition most reactions have an animated mechanism or structural equation. There are links to pages describing and explaining practical techniques, where relevant.
Also included are two posters of the synthetic routes, one blank and one completed, for printing (preferably A3 size), together with a blank table for practising types of reaction and reagents and conditions. Full answers are provided.
This resource was developed primarily for the OCR AS Chemistry specification but is useful for all specifications. It relates to the following sections :
Module 4 – Core organic chemistry
Part 2 – Alcohols, haloalkanes and analysis
4.2.3 Organic synthesis
Please review!
Content covered
• AS synthetic routes
• Animated mechanisms
• Key definitions
• Heating under reflux
• Distillation
• Reaction classification
• Reagents and conditions
• Structural equations
Duration: 1-2 lessons and/or independent study
See also: A level organic synthesis - aliphatic and aromatic
https://www.tes.com/teaching-resource/organic-synthesis-aliphatic-and-aromatic-12219292
This complete year 12 resource on acid-base titrations includes the practical procedure and calculations for titrations as well as details of evaluating experiments. It features a 28 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way. The resource includes a starter, learning checks, clearly explained examples of calculations, a practical activity with evaluation and a plenary. A 20 page worksheet includes a variety of structured and unstructured calculations and answers to all exercises. Ideal for the classroom or blended learning, this resource could be used to present the topic, or for revision, extension or consolidation.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.4 – Acids (part)
Content covered:
• Titration and uses
• Standard solution
• Glassware and procedure for titration with detailed hints for technique
• Reading burette
• Recording titration results and calculating the mean
• Titration calculations
• Examples of structured and unstructured calculations
• Revision of calculations involving masses and volumes
• Practical titration activity
• Evaluation of titration experiment
• Uncertainties and calculating % uncertainties
• Procedural errors
Duration: 2 lessons
Please review!
Links
Previous topic: Topic 11 – Acids and bases (free resource)
https://www.tes.com/teaching-resource/acids-and-bases-ocr-as-chemistry-12747201
Next topic: Topic 13 – Redox
https://www.tes.com/teaching-resource/redox-ocr-as-chemistry-12409890
Related topics
Topic 8 − Moles and concentration of solutions
https://www.tes.com/teaching-resource/moles-and-concentration-of-solutions-ocr-as-chemistry-12391026
Topic 9 – Moles and reactions
https://www.tes.com/teaching-resource/moles-and-reactions-ocr-as-chemistry-12404411
Bundle − Moles, masses, concentrations, gas volumes and reactions
https://www.tes.com/teaching-resource/moles-masses-concentrations-gas-volumes-and-reactions-12404451
This complete year 12 lesson on covalent bonding includes dot-and-cross diagrams, single, double, triple and dative covalent bonds as well as lone pairs, exceptions to the Octet Rule and bond enthalpies. It features a 37 slide animated PowerPoint that illustrates the concepts in a lively and visual way and includes a starter, learning checks, animations, clearly explained examples including dot-and-cross diagrams, and a plenary discussion. A 12 page worksheet and answers to the exercises are provided.
This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 2 – Electrons, bonding and structure
2.2.2 Bonding and structure
Content covered:
• Definition of a covalent bond
• Single, double and triple covalent bonds
• Lone pairs
• How to construct dot-and-cross diagrams
• Dative covalent or coordinate bonds
• The Octet Rule and exceptions
• Average bond enthalpies
Duration: 1-2 lessons
Please review!
Links
Previous topic: Topic 15 Ionic bonding OCR AS Chemistry https://www.tes.com/teaching-resource/resource-12598361
Next topic: Topic 17 – Shapes of molecules and ions OCR AS Chemistry https://www.tes.com/teaching-resource/resource-12220291
This complete year 12 lesson covers the periodicity of ionisation energies and melting points. The section on ionisation energies includes the successive ionisation energies of a particular element and the variation in first ionisation energies across periods and down groups. The section on melting points includes the periodicity of structure and the variation in melting points across the periodic table. The resource features a 60 slide animated PowerPoint that illustrates and explains the concepts in a lively and visual way; it includes several interactive slides that link to other slides to allow a non-linear progression through the concepts. A starter and plenary are also included. An 18 page worksheet and answers to all exercises are provided.
This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 3 – Periodic table and energy
Part 1 – The periodic table
3.1.1 Periodicity
Content covered:
• First ionisation energy – definition
• Factors affecting ionisation energies: nuclear charge, atomic radius and shielding
• Explanation of shielding
• Successive ionisation energies
• Predicting group from successive ionisation energies
• Periodicity of first ionisation energies
• Trends across a period and down a group
• Explanations of small decreases from group 2 to group 3 and from group 5 to group 6
• Periodicity of structure of elements: giant metallic, giant covalent and simple molecular structures
• Periodicity of melting points and explanation in terms of structure.
Duration: 2 lessons
Please review!
Links
Previous topic: Topic 21 – Periodic table past and present OCR AS Chemistry
https://www.tes.com/teaching-resource/periodic-table-past-and-present-ocr-as-chemistry-12964450
Next topic: Topic 23 - Group 2
https://www.tes.com/teaching-resource/group-2-ocr-as-chemistry-13074756
Related topic: Topic 20 Structure and bonding
https://www.tes.com/teaching-resource/structure-and-bonding-ocr-as-chemistry-12933603
This complete year 12 resource (2 lessons) on redox covers the whole of OCR section 2.1.5 (Redox) and includes definitions of redox, oxidation number and redox reactions. It features a 59 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, a quiz, clearly explained examples (including exam style questions) and a plenary. A 12 page worksheet and answers to all exercises are provided.
This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.5 – Redox
Content covered:
• Redox definition in terms of electron transfer
• Oxidation numbers and how to calculate them
• Oxidation number in chemical names
• Redox definition in terms of oxidation number
• Using oxidation numbers to identify redox reactions and determine what has been oxidised and reduced
• Oxidising and reducing agents
• Disproportionation as oxidation and reduction of the same element
Duration: 2 lessons
Please review!
Links
Previous topic: Topic 12 – Acid-base titrations (in preparation)
Next topic: Topic 14 – Electron configuration – shells, sub-shells and orbitals
https://www.tes.com/teaching-resource/electron-configuration-shells-sub-shells-and-orbitals-ocr-as-chemistry-12207312
This complete resource (1-2 lessons) on the shapes of molecules is ideal for classroom or home learning. It features a 42 slide PowerPoint showing the application of the electron pair repulsion theory in a highly visual way with high quality animated 3D images. Also included are starter, balloon modeling activity, model answer to exam question and plenary along with a 9 page workbook and a lesson plan. Exam tips and answers to all exercises are provided.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 2 – Electrons, bonding and structure
2.2.2 Bonding and structure
Please review!
Content covered:
• Electron pair repulsion theory (VSEPR)
• Effect of lone pairs on shape
• Model answer to exam question
• How to draw simple shapes in 3D
• Bond angles
Duration: 1-2 lessons
Links
Previous lesson: Topic 16 – covalent bonding
https://www.tes.com/teaching-resource/covalent-bonding-ocr-as-chemistry-12605422
Next lesson: topic 18 – Electronegativity and polarity (in preparation)
This bundle is ideal for classroom or home learning and covers all of the OCR A level chemistry specification section 3.2.1 − enthalpy changes. The energetics topics covered are enthalpy changes, experimental determination of enthalpy changes, bond enthalpies and Hess’ Law. Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz.
This bundle is part of a series covering the OCR AS Chemistry specification and relates to the following section:
Module 3 – Periodic table and energy / Part 2 – Physical chemistry / 3.2.1 Enthalpy changes
Content covered:
Enthalpy changes
• What is enthalpy
• Law of conservation of energy
• Enthalpy change
• Enthalpy profile diagrams
• System and surroundings
• Exothermic and endothermic reactions and examples
• Activation energy
• Standard enthalpy changes
• Standard conditions
• Definitions of enthalpy changes
• Simple calculations involving enthalpy changes
Experimental determination of enthalpy changes
• Energy exchange with the surroundings - heat loss in a chemical system = heat gain by surroundings
• Temperature scales
• Determining enthalpy changes using calorimetry
• Calculations involving q = mc∆T .
• Determining enthalpy changes in solution
• Determining enthalpy of combustion
• Errors associated with calorimetry experiments and how to minimise them
• Cooling curves and how to find the temperature rise
• Thermometric titration
Bond enthalpies
• Making covalent bonds (exothermic) and breaking covalent bonds (endothermic)
• Overall enthalpy change linked to relative enthalpies of breaking and making bonds – enthalpy profile diagram
• Average bond enthalpies and why they differ from actual bond enthalpies
• Factors affecting average bond enthalpies
• Calculations involving bond enthalpies
• Limitations of bond enthalpy calculations
• Plenary discussion about why there is a constant increase in the enthalpy change of combustion of alcohols for each CH2 group added
Hess’ Law
• Hess’ Law
• Indirect determination of enthalpy changes
• Enthalpy cycles
• Calculating enthalpy changes from enthalpy changes of combustion
• Calculating enthalpy changes from enthalpy changes of formation
• Summary of types of enthalpy calculation
• Calculating enthalpy changes from unfamiliar enthalpy cycles
Links
Next lesson: Topic 29 – Rates of reaction and collision theory (in preparation)
Free resource - standard form, decimal places and significant figures
https://www.tes.com/teaching-resource/resource-12405507
This complete year 12 lesson on enthalpy changes covers part of OCR section 3.2.1 (Enthalpy changes). It includes the energetics topics: exothermic and endothermic reactions, enthalpy profile diagrams and definitions of enthalpy changes with their equations. It features a 43 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained examples and a plenary quiz. A 13 page worksheet and answers to the exercise are provided.
This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 3 – Periodic table and energy
Part 2 – Physical chemistry
3.2.1 – Enthalpy changes
Content covered:
• What is enthalpy
• Law of conservation of energy
• Enthalpy change
• Enthalpy profile diagrams
• System and surroundings
• Exothermic and endothermic reactions and examples
• Activation energy
• Standard enthalpy changes
• Standard conditions
• Definitions of enthalpy changes and their equations
• Simple calculations involving enthalpy changes
Duration: 1 lesson
Please review!
Links
Previous topic: Topic 24 – Qualitative analysis (in preparation)
Next topic: Topic 26 – Experimental determination of enthalpy changes https://www.tes.com/teaching-resource/experimental-determination-of-enthalpy-changes-ocr-as-chemistry-12517135
Free resource - standard form, decimal places and significant figures
https://www.tes.com/teaching-resource/resource-12405507
Serving as an introduction to atomic structure, this lesson on the Changing Atom includes all the materials needed for a group activity on the contributions of key scientists to the development of the theory of atomic structure. It features an interactive PowerPoint including starter, group activity, questions and plenary along with a worksheet and a lesson plan.
This is the first lesson in a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.1 Atomic structure and isotopes
Please review!
Content covered
How Science Works - HSW7 - The changing accepted models of atomic structure over time.
The contributions of five scientists to the development of the theory of atomic structure.
Duration : One part lesson (setting up) and one whole lesson (group activity and plenary).
The rest of the part lesson can be spent starting atomic structure (see atomic structure lesson)
Links
Next lesson – Atomic structure
Bundle covering the whole of the OCR A level chemistry specification sections 2.1.1 and 2.1.2. (topics 1-4)
https://www.tes.com/teaching-resource/atomic-masses-formulae-and-equations-ocr-as-chemistry-12348685
This complete lesson on introducing organic chemistry is ideal for classroom home learning features a 46 slide interactive, animated PowerPoint as well as a starter activity and plenary along with a 10 page workbook and a lesson plan. Exam tips and answers to all exercises are provided.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 4 – Core organic chemistry
Part 1 – Basic concepts and hydrocarbons
4.1.1 Basic concepts of organic chemistry
Please review!
Content covered:
• Why carbon is special
• Bonding in organic compounds
• Different types of formulae
• Types of organic compounds
• Functional groups and homologous series
Duration: 1 lesson
Links
Next lesson: Topic 41 - Naming hydrocarbons
https://www.tes.com/teaching-resource/naming-hydrocarbons-ocr-as-chemistry-12242016