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 for independent work or in the classroom. This resource covers A2 organic aliphatic synthetic routes through a 28 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 a blank chart of the synthetic routes for printing (preferably A3 size), together with a blank table for practicing types of reaction and reagents and conditions. Full answers are provided.
This resourced was produced primarily for OCR A level chemistry but would be useful for other boards as well.
It relates particularly to the following sections:
Module 6 – Organic chemistry and analysis
Part 2 – Nitrogen compounds, polymers and synthesis
6.2.5 Organic synthesis
Please review!
Content covered
• A2 aliphatic synthetic routes
• Extending carbon chain length (carbon-carbon bond formation)
• Animated mechanisms
• Key definitions
• Heating under reflux
• Distillation
• Reaction classification
• Reagents and conditions
• Structural equations
Duration: 1-2 lessons and/or independent study
Links
Please see also:
organic synthesis - aromatic
https://www.tes.com/teaching-resource/organic-synthesis-aromatic-12200558
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 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 complete year 12 lesson on structure and bonding includes structures and physical properties of giant ionic, giant covalent, giant metallic and simple molecular substances. The factors affecting physical properties are discussed, including structure, types of particles the lattice is built up from and the bonds or forces holding these particles together. The resource features a 52 slide animated PowerPoint that illustrates the concepts in a lively and visual way and includes a starter, learning checks, animations, clearly explained examples, a jigsaw discussion and a plenary quiz. A 15 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 (part)
Module 3 – Periodic table and energy
Part 1 – the Periodic Table
3.1.1 Periodicity (part)
Content covered:
• Factors influencing physical properties
• The way the atoms/ions are grouped together (structure)
• The type of particles the lattice 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 structures
• 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
Duration: 2 lessons
Please review!
Links
Previous topic: Topic 19 – Intermolecular forces
https://www.tes.com/teaching-resource/intermolecular-forces-ocr-as-chemistry-12927621
Next topic: 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 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 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
Includes a fully interactive PowerPoint quiz on writing the formulae of ions and compounds! This complete lesson is ideal for classroom or home learning. It features a 32 slide interactive PowerPoint including starter, group activities, questions and plenary along with an 8 page worksheet and a lesson plan. 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
2.1.2 Compounds, formulae and equations
Please review!
Content covered:
• 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
Duration: one lesson
Links
Previous lesson: Topic 3: Atomic masses
https://www.tes.com/teaching-resource/atomic-masses-ocr-as-chemistry-12183618
Next lesson: Topic 5: Amount of substance and the mole
https://www.tes.com/teaching-resource/amount-and-moles-ocr-as-chemistry-12190652
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 atomic structure and isotopes in terms of protons, neutrons and electrons is ideal for classroom or home learning. It features a 29 slide interactive PowerPoint including starter, group activities, questions and plenary along with an 8 page worksheet and a lesson plan. An exam style question is also included. Answers to all exercises are provided. A fully interactive PowerPoint multiple choice quiz is provided as a plenary activity, along with the A, B, C, D cards needed in the classroom.
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
2.1.1 Atomic structure and isotopes
Please review!
Content covered
• Protons, neutrons and electrons – mass and relative charge
• Atomic number and mass number
• Isotopes
• Key definitions
Duration: one lesson
Links
Previous lesson: Topic 1: The changing atom
https://www.tes.com/teaching-resource/the-changing-atom-ocr-as-chemistry-12182003
Next lesson: Topic 3: Atomic masses
https://www.tes.com/teaching-resource/atomic-masses-ocr-as-chemistry-12183618
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 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
A fun quiz on naming alkanes and cycloalkanes, based on the format used by A Question of Sport in their picture quiz. Can be used as a team or individual activity, using mini whiteboards to write the answers. A linked interactive PowerPoint, with answers and explanations, is provided along with full teaching notes.
Please review!
Content covered:
• Application of IUPAC rules of nomenclature for systematically naming organic compounds
• Naming alkanes and cycloalkanes
• Naming branched alkanes
Duration: 20 minutes
Links
Complete lesson - Topic 41 - Naming hydrocarbons
https://www.tes.com/teaching-resource/naming-hydrocarbons-ocr-as-chemistry-12242016
This is part of a series of ACTIVE REVISION SHEETS for AS Chemistry, designed to help students actively learn by filling in blanks and testing themselves as part of their revision. Each revision sheet consists of alternating A4 question and answer pages. The question pages have gaps and tables to fill in, as well as quick check questions. The answer pages have the same format, but with all the blanks filled in and answers to all questions. The question and answer pages should be printed back to back on A4 or side by side on A3 or A4 (reduced) – in the latter case the sheets should be folded in half to hide the answers. Ideal for self-study or classroom use, students can complete the question pages before looking at the answers to check their learning. Learning outcomes and tick boxes for each outcome are also provided.
This 6 page revision sheet on atomic masses is part of a series primarily aimed at 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
• 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
Links
Previous revision sheet – Atomic structure
Next revision sheet – Formulae and equations
For full lesson with PowerPoint and worksheet see also Topic 3 - Atomic masses
https://www.tes.com/teaching-resource/atomic-masses-ocr-as-chemistry-12183618
This complete year 12 resource on acids, bases, alkalis, neutralization and salts includes formulae of acids, bases, alkalis and salts, equations for neutralization reactions and ionic equations. It features a 39 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained examples of writing and balancing equations, and a quick quiz as plenary. A 17 page worksheet and answers to all exercises are provided. 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:
• 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
Duration: 1-2 lessons
Please review!
Links
Previous topic:
Topic10 – Percentage yield and atom economy
https://www.tes.com/teaching-resource/percentage-yield-and-atom-economy-ocr-as-chemistry-12745344
Next topic:
Topic 12 – Acid-base titrations
https://www.tes.com/teaching-resource/acid-base-titrations-ocr-as-chemistry-12749636
Related topic:
Topic 4 - Formulae and equations
https://www.tes.com/teaching-resource/formulae-and-equations-ocr-as-chemistry-12186723
One of a series of FREE resources designed to help AS Chemistry students to finish the AS specification by self-study before starting the A2 year.
This knowledge organiser/poster/mat summarises all the important information about the chemistry of alcohols in a colourful and concise way. It can be printed on one A4 page.
For a more detailed treatment of the topic see Chemistry of Alcohols – AS homelearning https://www.tes.com/teaching-resource/chemistry-of-alcohols-as-home-learning-12273938, which includes an interactive, animated PowerPoint and a worksheet with answers.
Please review!
Content covered
• Primary, secondary and tertiary alcohols
• Substitution reaction of alcohols
• Oxidation of alcohols
• Elimination (dehydration) reaction of alcohols
• Reactions of primary, secondary and tertiary alcohols
• Reaction classification
• Reagents and conditions
• Structural equations
• Key definitions
• Heating under reflux
• Distillation to prevent complete oxidation
This is the first in a series of MULTIPLE CHOICE QUIZZES (MCQs) for AS Chemistry, provided in two formats – PowerPoint for a fun classroom activity and a paper quiz for assessment or homework. Either quiz would be an invaluable tool for revision.
The questions are graded – starting off fairly straightforward and progressing to more challenging examples.
A, B, C, D cards for students to hold up in class can be made from the template provided.
This multiple choice quiz on atomic structure is part of a series primarily aimed at 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
• Protons, neutrons and electrons – mass and relative charge
• Atomic number and mass number
• Isotopes
• Key definitions
Links
Next multiple choice quiz: Atomic masses (in preparation)
For full lesson on Atomic Structure with PowerPoint and worksheet see
https://www.tes.com/teaching-resource/atomic-structure-ocr-as-chemistry-12182593
This is the first in a series of ACTIVE REVISION SHEETS for AS Chemistry, designed to help students actively learn by filling in blanks and testing themselves as part of their revision. Each revision sheet consists of alternating A4 question and answer pages. The question pages have gaps and tables to fill in, as well as quick check questions. The answer pages have the same format, but with all the blanks filled in and answers to all questions. The question and answer pages should be printed back to back on A4 or side by side on A3 or A4 (reduced) – in the latter case the sheets should be folded in half to hide the answers. Ideal for self-study or classroom use, students can complete the question pages before looking at the answers to check their learning. Learning outcomes and tick boxes for each outcome are also provided.
This 4 page revision sheet on atomic structure is part of a series primarily aimed at 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
• Protons, neutrons and electrons – mass and relative charge
• Atomic number and mass number
• Isotopes
• Key definitions
Links
Next revision sheet: Atomic masses
https://www.tes.com/teaching-resource/atomic-masses-as-active-revision-12251537
For full lesson with PowerPoint and worksheet see
https://www.tes.com/teaching-resource/atomic-structure-ocr-as-chemistry-12182593
This complete year 12 lesson on electronegativity and bond polarity includes electronegativity, core charge, non-polar and polar covalent bonds and predicting the polarity of molecules from the bond polarities and the molecular shape. It features a 23 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. A 6 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 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
Duration: 1 lesson
Please review!
Links
Previous topic: Topic 17 – Shapes of molecules and ions OCR AS Chemistry https://www.tes.com/teaching-resource/resource-12220291
Next topic: Topic 19 Intermolecular forces
https://www.tes.com/teaching-resource/intermolecular-forces-ocr-as-chemistry-12927621
This complete year 12 lesson on alkenes covers part of OCR section 4.1.3 (Alkenes). Content includes structure and reactivity of alkenes, the nature of the C=C double bond, addition reactions of alkenes, the electrophilic addition mechanism and Markownikoff’s rule. The resource features a 47 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. There is a starter and a plenary activity as well as a 16 page workbook. 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
4.1.3 − Alkenes
Content covered:
Structure and reactivity of alkenes
The nature of the double bond – sigma and pi bonds
Explanation of restricted rotation around C=C
Shape of ethene in terms of electron pair repulsion theory
Addition reactions of alkenes
Reactions of ethene and propene including addition of halogens, steam, hydrogen halides and hydrogen
Test for alkenes with aqueous bromine
Catalytic addition of hydrogen - mechanism
Margarine manufacture
Definition of electrophile
Electrophilic addition mechanism
Addition of HX to unsymmetrical alkenes - Markownikoff’s rule and explanation
Duration: 1-2 lessons
Please review!
Links
Previous lesson: topic 46 – Reactions of alkanes
https://www.tes.com/teaching-resource/reactions-of-alkanes-ocr-as-chemistry-12987021
Next lesson: topic 48 – Addition polymers (in preparation)
Lesson on naming hydrocarbons:
https://www.tes.com/teaching-resource/naming-hydrocarbons-with-quiz-as-12243823
Lesson on isomerism, including E/Z isomerism of alkenes:
https://www.tes.com/teaching-resource/isomerism-ocr-as-chemistry-12634065
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 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 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
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