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!
This complete year 12 lesson on introduction to alkanes covers part of OCR sections 4.1.2 (Alkanes). Content covered includes uses of alkanes as fuels, bonding and shapes of alkanes and their physical properties. The resource features a 27 slide animated PowerPoint along with a 6 page workbook. There is a starter activity and a short quiz as a plenary. Exam tips and answers to the exercise are provided. Ideal for the classroom or blended learning, this resource could be used as an introduction to 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 part of the specification:
Module 4 – Core organic chemistry
Part 1 – Basic concepts and hydrocarbons
4.1.2 − Alkanes
Content covered:
Sources and uses of alkanes
Definitions of fossil fuels and crude oil
Uses of alkanes as fuels
Bonding in alkanes
Formation and rotation of sigma bonds
Shapes of alkanes
Intermolecular forces in alkanes in terms of non-polar molecules
Melting and boiling points of alkanes in terms of London forces
Effect of chain length and branching on London forces
Duration: 1 lesson
If you find this free resource useful, please leave a review!
Links
Previous lesson: topic 44 – Organic reagents and types of reaction
https://www.tes.com/teaching-resource/organic-reagents-and-types-of-reaction-ocr-as-chemistry-12643937
Next lesson: topic 46 – Reactions of alkanes
https://www.tes.com/teaching-resource/reactions-of-alkanes-ocr-as-chemistry-12987021
Lesson on naming hydrocarbons:
https://www.tes.com/teaching-resource/naming-hydrocarbons-with-quiz-as-12243823
Lesson on isomerism, including further information on shapes of alkanes and alkenes:
https://www.tes.com/teaching-resource/isomerism-ocr-as-chemistry-12634065
This bundle is ideal for classroom or home learning and covers all of the OCR A level chemistry specification section 4.1.1 – basic concepts of organic chemistry, as well as isomerism from section 4.1.3 (Alkenes).
The topics covered are:
introduction to organic chemistry
naming hydrocarbons
quiz – a question of naming alkanes
functional groups – names and formulae
isomerism
organic reagents and types of reaction
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 sections:
Module 4– Core organic chemistry
Part 2 – Basic concepts and hydrocarbons
4.1.1 Basic concepts of organic chemistry (all) and 4.1.3 Alkenes (part)
Content covered:
Introduction to organic chemistry
• Why carbon is special
• Bonding in organic compounds
• Different types of formulae
• Types of organic compounds
• Functional groups and homologous series
Naming hydrocarbons
• Application of IUPAC rules of nomenclature for systematically naming organic compounds
• Naming alkanes and cycloalkanes
• Naming branched alkanes
• Naming alkenes and branched alkenes
Quiz – A Question of naming alkanes
Functional groups – names and formulae
• Application of IUPAC rules of nomenclature for systematically naming organic compounds
• Practice naming organic compounds including those with functional groups
• Revision of empirical and molecular formula and how to calculate them
• Formulae of compounds with functional groups
Displayed formula
Structural formula
Skeletal formula
Isomerism
• Shapes of alkanes (with model building)
• Definitions of structural isomers, stereoisomers, E/Z isomers and cis-trans isomers
• Classification of isomers with examples
• Structural isomers including chain, position and functional group isomers
• Shapes of alkenes (with model building)
• Restricted rotation around the C=C double bond
• Stereoisomers – E/Z and cis-trans isomers
• Animated illustrations of E/Z isomers
• Criteria for E/Z isomerism and for cis-trans isomerism with examples and learning check
• Cahn-Ingold-Prelog rules for naming E/Z isomers with examples
Organic reagents and types of reaction
• Ways of breaking covalent bonds
Homolytic fission
Heterolytic fission
• Types of organic reagents and their reactions
Nucleophiles
Electrophiles
Radicals
• Introduction to mechanisms
• Curly arrows
• Types of reaction
Addition
Substitution
Elimination
• Classification of reactions
Links
Next lesson: Topic 45 - Introduction to alkanes
https://www.tes.com/teaching-resource/introduction-to-alkanes-ocr-as-chemistry-12654263
This complete year 12 lesson on organic reagents and types of reaction covers part of OCR section 4.1.1 (Basic concepts of organic chemistry). Covering types of bond fission, reagents, and an introduction to reaction mechanisms, it features a 47 slide animated PowerPoint along with a 10 page workbook. There is a starter activity and a multiple choice quiz is also included as a plenary. Exam tips and answers to all exercises are provided. Ideal for the classroom or blended learning, this resource could be used as an introduction to 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 part of the specification:
Module 4 – Core organic chemistry
Part 1 – Basic concepts and hydrocarbons
4.1.1 Basic concepts of organic chemistry
Content covered:
• Ways of breaking covalent bonds
o Homolytic fission
o Heterolytic fission
• Types of organic reagents and their reactions
o Nucleophiles
o Electrophiles
o Radicals
• Introduction to mechanisms
• Curly arrows
• Types of reaction
o Addition
o Substitution
o Elimination
• Classification of reactions
Duration: 1 lesson
Please review!
Links
Previous lesson: topic 43 – Isomerism
https://www.tes.com/teaching-resource/resource-12634065
Next lesson: topic 45 – Introduction to alkanes
https://www.tes.com/teaching-resource/introduction-to-alkanes-ocr-as-chemistry-12654263
This complete year 12 lesson on structural isomers and stereoisomers covers part of OCR sections 4.1.1 (Basic concepts of organic chemistry) and 4.1.3 (Alkenes). It features a 58 slide animated PowerPoint as well as a starter activity and plenary along with a 16 page workbook. There are several activities involving model building and a multiple choice quiz is also included as a learning check. Exam tips and answers to all exercises are provided. Ideal for the classroom or blended learning, this resource could be used as an introduction to the topic, or for revision, extension or consolidation.
Note: this resource does not cover optical isomerism. This will be dealt with in a later A2 topic.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following part of the specification:
Module 4 – Core organic chemistry
Part 1 – Basic concepts and hydrocarbons
4.1.1 Basic concepts of organic chemistry and 4.1.3 Alkenes
Content covered:
• Shapes of alkanes (with model building)
• Definitions of structural isomers, stereoisomers, E/Z isomers and cis-trans isomers
• Classification of isomers with examples
• Structural isomers including chain, position and functional group isomers
• Shapes of alkenes (with model building)
• Restricted rotation around the C=C double bond
• Stereoisomers – E/Z and cis-trans isomers
• Animated illustrations of E/Z isomers
• Criteria for E/Z isomerism and for cis-trans isomerism with examples and learning check
• Cahn-Ingold-Prelog rules for naming E/Z isomers with examples
Duration: 1 lesson
Please review!
Links
Previous lesson: topic 42 – Functional groups – names and formulae - OCR AS Chemistry
https://www.tes.com/teaching-resource/resource-12624555
Next lesson: topic 44 – Organic reagents and types of reaction - OCR AS Chemistry
https://www.tes.com/teaching-resource/organic-reagents-and-types-of-reaction-ocr-as-chemistry-12643937
This complete year 12 lesson on names and formulae of organic compounds with functional groups covers part of OCR section 4.1.1 (Basic concepts of organic chemistry). It features a 42 slide animated PowerPoint as well as a starter activity and plenary along with a 12 page workbook. Exam tips and answers to all exercises are provided. Ideal for the classroom or blended learning, this resource could be used as an introduction to 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 part of the specification:
Module 4 – Core organic chemistry
Part 1 – Basic concepts and hydrocarbons
4.1.1 Basic concepts of organic chemistry
Content covered:
• Application of IUPAC rules of nomenclature for systematically naming organic compounds
• Practice naming organic compounds including those with functional groups
• Revision of empirical and molecular formula and how to calculate them
• Formulae of compounds with functional groups
- Displayed formula
- Structural formula
- Skeletal formula
Duration: 1 lesson
Please review!
Links
Previous lesson: topic 41 – Naming hydrocarbons
https://www.tes.com/teaching-resource/resource-12242016
Quiz: A question of naming alkanes
https://www.tes.com/teaching-resource/resource-12243809
Bundle: Naming alkanes with quiz
https://www.tes.com/teaching-resource/resource-12243823
Next lesson: topic 43 – Isomerism
https://www.tes.com/teaching-resource/resource-12634065
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 Hess’s Law covers part of OCR section 3.2.1 (Enthalpy changes). It includes the following energetics topics: Hess’ Law, enthalpy cycles and their use in calculating enthalpy changes indirectly. It features a 39 slide animated PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained examples, including example calculations ,and a plenary activity. An 18 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 3 – Periodic table and energy
Part 2 – Physical chemistry
3.2.1 – Enthalpy changes
Content covered:
• 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
Duration: 2 lessons
Please review!
Links
Previous topic: Topic 27 – Bond enthalpies OCR AS chemistry
https://www.tes.com/teaching-resource/resource-12595300
Next topic: 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 bundle is ideal for classroom or home learning and covers electron configuration, ionic bonding, covalent bonding and shapes of molecules. It includes all of the OCR A level chemistry specification section 2.2.1 and part of 2.1.2.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet. Answers to all exercises are provided. Three 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 sections:
Module 2 – Foundations in chemistry / Part 2 – Electrons, bonding and structure
2.2.1 Electron structure and part of 2.2.2 – Bonding and structure
Content covered:
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
o melting point
o electrical conductivity
o 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
Links
Next lesson – free resource: Topic 18 – Electronegativity and bond polarity
https://www.tes.com/teaching-resource/electronegativity-and-bond-polarity-ocr-as-chemistry-12888524
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 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 complete year 12 lesson on bond enthalpies covers part of OCR section 3.2.1 (Enthalpy changes). It includes the energetics topics: making and breaking covalent bonds, average bond enthalpies, calculations involving bond enthalpies and their limitations. It features a 25 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained examples, including example calculations ,and a plenary discussion. An 8 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 3 – Periodic table and energy
Part 2 – Physical chemistry
3.2.1 – Enthalpy changes
Content covered:
• 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
Duration: 1 lesson
Please review!
Links
Previous topic: Topic 26 – Experimental determination of enthalpy changes OCR AS chemistry
https://www.tes.com/teaching-resource/resource-12517135
Next topic: Topic 28 – Hess’s Law
https://www.tes.com/teaching-resource/resource-12608484
Free resource - Standard form, decimal places and significant figures https://www.tes.com/teaching-resource/resource-12405507
This complete year 12 lesson on experimental determination of enthalpy changes covers part of OCR section 3.2.1 (Enthalpy changes). It includes the energetics topics: calorimetry, associated errors, and calculations involving q = mc∆T . It features a 36 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained examples, including example calculations ,and a plenary quiz. 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 3 – Periodic table and energy
Part 2 – Physical chemistry
3.2.1 – Enthalpy changes
Content covered:
• 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
Duration: 1 lesson
Please review!
Links
Previous topic: Topic 25 – Enthalpy changes (free resource)
https://www.tes.com/teaching-resource/enthalpy-changes-ocr-as-chemistry-12509439
Next topic: Topic 27 – Bond enthalpies
https://www.tes.com/teaching-resource/resource-12595300
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
https://www.tes.com/teaching-resource/qualitative-analysis-ocr-as-chemistry-13128777
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
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
https://www.tes.com/teaching-resource/acid-base-titrations-ocr-as-chemistry-12749636
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 introduction to standard form, decimal places and significant figures features a 14 slide interactive PowerPoint including explanations, examples and practice exercises. Answers to all exercises are given.
This resource is complementary to the mathematical topics of chemistry A level in years 12 and 13, for example; amount of substance, concentrations, volumes of gases as well as equilibrium constants, energy changes and rates of reaction.
Content covered:
• Standard form
• Decimal places and how to reduce them
• Significant figures and how to reduce them
• How to choose an appropriate number of significant figures in an answer
Links
Topic 5 – Amount of substance and the mole
https://www.tes.com/teaching-resource/amount-and-moles-ocr-as-chemistry-12190652
Topic 6 – Determining formulae
https://www.tes.com/teaching-resource/determining-formulae-ocr-as-chemistry-12347977
Topic 7 – Moles and gas volumes
https://www.tes.com/teaching-resource/moles-and-gas-volumes-ocr-as-chemistry-12336053
Topic 8 – Moles and concentrations of solutions
https://www.tes.com/teaching-resource/moles-and-concentration-of-solutions-ocr-as-chemistry-12391026
Bundle – Moles, masses, concentration, gas volumes and reactions
https://www.tes.com/teaching-resource/moles-masses-concentrations-gas-volumes-and-reactions-12404451
This bundle is ideal for classroom or home learning and covers the whole of the OCR A level chemistry specification section 2.1.3 - Amount of Substance (together with the free resource - topic 10 Percentage yield and atom economy)
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.
This bundle is the second 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
2.1.3 – Amount of substance
Content covered
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 and concentrations of 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)
Links
Previous bundle:
Atomic structure, masses, formulae and equations https://www.tes.com/teaching-resource/atomic-masses-formulae-and-equations-ocr-as-chemistry-12348685
Next bundle
Acids, titrations and redox
https://www.tes.com/teaching-resource/acids-titrations-and-redox-ocr-as-chemistry-12749654
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 resource (2 lessons) on moles and reactions includes reacting masses, stoichiometry, molar ratios and using moles to calculate quantities from chemical reactions (mass, concentration and volume of gases). It features a 33 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained example calculations, and a plenary. A 24 page worksheet 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:
• 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 (reacting masses)
• 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
Duration: 2 lessons
Please review!
Links
Previous topic: topic 8 – Moles and concentrations of solutions https://www.tes.com/teaching-resource/moles-and-concentration-of-solutions-ocr-as-chemistry-12391026
Next topic: topic 10 – Percentage yield and atom economy (free resource)
https://www.tes.com/teaching-resource/resource-12745344
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
Bundle covering whole of 2.1.3 – Amount of substance
https://www.tes.com/teaching-resource/moles-masses-concentrations-gas-volumes-and-reactions-12404451
This complete year 12 resource (1-2 lessons) on moles and concentrations of solutions is ideal for classroom or home learning and includes concentration, mass concentration, standard solutions and dilution. It features a 71 slide interactive PowerPoint that aims to illustrate the concepts in a visual and systematic way and includes a starter, learning checks, clearly explained example calculations, and a plenary. A 19 page worksheet 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:
• 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
Duration: 1-2 lessons
Please review!
Links
Previous lesson: Topic 7 - Moles and gas volumes
https://www.tes.com/teaching-resource/moles-and-gas-volumes-ocr-as-chemistry-12336053
Next lesson: Topic 9 - Moles and reactions
https://www.tes.com/teaching-resource/moles-and-reactions-ocr-as-chemistry-12404411
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 bundle is ideal for classroom or home learning and covers the whole of the OCR A level chemistry specification sections 2.1.1 and 2.1.2.
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. Three of the resources include a PowerPoint quiz.
This bundle is the first 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 and 2.1.2 – Formulae and equations
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
Links
Next lesson – free resource:
Topic 5 – Amount of substance and the mole
https://www.tes.com/teaching-resource/amount-and-moles-ocr-as-chemistry-12190652
Next bundle - Moles, masses, concentrations, gas volumes and reactions (covers whole of OCR section 2.1.3)
https://www.tes.com/teaching-resource/moles-masses-concentrations-gas-volumes-and-reactions-12404451
This complete year 12 resource (1-2 lessons) on determining formulae is ideal for classroom or home learning and includes calculating empirical formulae, molecular formulae and formulae of hydrated salts. It features a 37 slide interactive PowerPoint that aims to illustrate the concepts in a visual and systematic way and includes a starter, learning checks, clearly explained example calculations, and a plenary. A 13 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:
• 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
Duration: 1-2 lessons
Please review!
Links
Previous lesson: Topic 5 - Amount of substance and the mole
https://www.tes.com/teaching-resource/amount-and-moles-ocr-as-chemistry-12190652
Next lesson: Topic 7 – Moles and gas volumes
https://www.tes.com/teaching-resource/moles-and-gas-volumes-ocr-as-chemistry-12336053
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