3 Full Lesson Bundle (including a FREE revision lesson!) on Buffer Solutions. This bundle covers the OCR A Level Chemistry specification. Please review the learning objectives below. **Part 1: Explaining How Buffer Solutions Work To know a buffer solution is a system that minimises pH changes on addition of small amounts of an acid or base To describe how a buffer solution is formed using weak acids, salts and strong alkalis To explain the role of the conjugate acid-base pair in an acid buffer solution such as how the blood pH is controlled by the carbonic acid–hydrogencarbonate buffer system **Part 2: Buffer Solution Calculations (Part 1) To calculate the pH of a buffer solution containing a weak acid and the salt of a weak acid by using the Ka expression and pH equation To calculate equilibrium concentrations, moles or mass of the components of a weak acid-salt of a weak acid buffer solution **Part 3: Buffer Solution Calculations (Part 2) To calculate the pH of a weak acid-strong alkali buffer solution To calculate equilibrium concentrations, moles or mass of the components of a weak acid- strong alkali buffer solution Part 4: BONUS Revision Lesson To review how to calculate the pH of a buffer solution containing a weak acid and a strong alkali To review how to calculate the pH of a buffer solution containing a weak acid and the salt of the weak acid Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons including using your own lesson PowerPoints is a fundamental skill of a qualified/unqualified teacher that will be reviewed during these scenarios outlined above

5 Full Lesson Bundle + FREE practical lesson covering Transition Elements from OCR A Level Chemistry. Please review the learning objectives below Lesson 1: Transition Metals & Their Compounds To know the electron configuration of atoms and ions of the d-block elements of Period 4 (Sc–Zn), given the atomic number and charge To understand the elements Ti–Cu as transition elements To illustrate, using at least two transition elements, of: (i) the existence of more than one oxidation state for each element in its compounds (ii) the formation of coloured ions (iii) the catalytic behaviour of the elements and their compounds and their importance in the manufacture of chemicals by industry Lesson 2: Transition Metals & Complex Ions To explain and use the term ligand in terms of dative covalent bonding to a metal ion or metal, including bidentate ligands To use the terms complex ion and coordination number To construct examples of complexes with: (i) six-fold coordination with an octahedral shape (ii) four-fold coordination with either a planar or tetrahedral shape Lesson 3: Stereoisomerism in Complex Ions To understand the types of stereoisomerism shown by metal complexes, including those associated with bidentate and multidentate ligands including: (i) cis–trans isomerism e.g. Pt(NH3)2Cl2 (ii) optical isomerism e.g. [Ni(NH2CH2CH2NH2)3] 2+ To understand the use of cis-platin as an anti-cancer drug and its action by binding to DNA preventing cell division Lesson 4: Precipitation and Ligand Substitution Reactions To recall the colour changes and observations of reactions of Cu2+, Fe2+, Fe3+, Mn2+ and Cr3+ with aqueous sodium hydroxide and ammonia (small amounts and in excess) To construct ionic equations for the precipitation reactions that take place To construct ionic equation of the ligand substitution reactions that take place in Cu2+ ions and Cr3+ ions To explain the biochemical importance of iron in haemoglobin, including ligand substitution involving O2 and CO Lesson 5: Transition Elements & Redox Reactions To interpret the redox reactions and accompanying colour changes for: (i) interconversions between Fe2+ and Fe3+ (ii) interconversions between Cr3+ and Cr2O72− (iii) reduction of Cu2+ to Cu+ (iv) disproportionation of Cu+ to Cu2+ and Cu To interpret and predict redox reactions and accompanying colour changes of unfamiliar reactions including ligand substitution, precipitation and redox reactions Lesson 6: Practical on Precipitation and Ligand Substitution Reactions To make observations of the reactions of Cu2+, Fe2+, Fe3+, Mn2+ and Cr3+ in aqueous sodium hydroxide and ammonia To construct ionic equations for the redox reactions that take place For 23 printable flashcards on this chapter please click here: https://www.tes.com/teaching-resource/resource-12637622 For lessons on redox titrations involving transition metals please click here : Part 1: https://www.tes.com/teaching-resource/ocr-redox-titrations-part-1-12244792 Part 2: https://www.tes.com/teaching-resource/ocr-redox-titrations-part-2-12244807 Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons including using your own lesson PowerPoints is a fundamental skill of a qualified/unqualified teacher that will be reviewed during these scenarios outlined above

3 Full Lesson Bundle covering Analytical Techniques (mass spectrometry, IR spectroscopy and combined techniques in organic chemistry) . These lessons follow the OCR specification Lesson 1: Mass Spectrometry in Organic Chemistry **1) Use a mass spectrum of an organic compound to identify the molecular ion peak and hence to determine molecular mass **2)Perform analysis of fragmentation peaks in a mass spectrum to identify parts of structures Lesson 2: IR Spectroscopy **1) To understand the absorption of infrared radiation by atmospheric gases containing C=O, O-H and C-H bonds, their suspected link to global warming and resulting changes to energy uses **2)To understand how infrared spectroscopy works **3)To understand the application of infrared spectroscopy **4) To interpret IR spectra Lesson 3: Combined Spectroscopic Techniques **1)To apply combined spectroscopic techniques (IR spectroscopy, mass spectrometry and elemental analysis) to identify the structures of unknown compounds Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons, including using your own lesson PowerPoints, is a fundamental skill of a qualified/unqualified teacher that will be assessed during the scenarios outlined above

9 Full Lesson Bundle covering Module 3.1 - The Periodic Table from OCR A Level Chemistry A specification. Please review the learning objectives below Lesson 1: The Structure of The Periodic Table To know how the periodic table is arranged To describe the periodic trend in electron configurations across periods 2 and 3 To classify elements into s, p and d blocks Lesson 2: AS Chemistry: Ionisation Energy (Part 1) To define the term ‘first ionisation energy’ and successive ionisation energies To describe the factors affecting ionisation energy To explain the trend in successive ionisation energies of an element Lesson 3: AS Chemistry: Ionisation Energy (Part 2) To explain the trend in first ionisation energies down a group To explain the trend in first ionisation energies across period 2 To explain the trend in first ionisation energies across period 3 Lesson 4: Periodicity: Melting Points To describe the trend in structure from giant metallic to giant covalent to simple molecular lattice To explain the variation in melting points across period 2 & 3 in terms of structure and bonding Lesson 5: AS Chemistry: Group 2 Elements To know group 2 elements lose their outer shell s2 electrons to form +2 ions To state and explain the trend in first and second ionisation energies of group 2 elements and how this links to their relative reactivities with oxygen, water and dilute acids To onstruct half equations of redox reactions of group 2 elements with oxygen, water and dilute acids and to identify what species have been oxidised and reduced using oxidation numbers Lesson 6: AS Chemistry: Group 2 Compounds To know the reaction between group 2 metal oxides and water To state the trend in solubility and alkalinity of group 2 metal hydroxides To describe the uses of some group 2 compounds including their equations Lesson 7: The Halogens: Properties & Reactivity To describe and explain the trend in boiling points of the halogens in terms of induced dipole-dipole interactions (London Forces) To describe and explain the trend in reactivity of the halogens illustrated by their displacement reaction with other halide ions To construct full and ionic equations of halogen-halide displacement reactions and to predict the colour changes of these reactions in aqueous and organic solutions Lesson 8: Disproportionation & The Uses of Chlorine To explain the term disproportionation To explain how the reaction of chlorine with water or cold dilute sodium hydroxide are examples of disproportionation reactions To evaluate the uses of chlorine (How Science Works) Lesson 9: Qualitative Analysis To carry out test tube reactions and record observations to determine the presence of the following anions : CO32- SO42- , Cl-, Br-, and I- To carry out test tube reactions and record observations to determine the presence of the following cations: NH4+, Fe2+, Fe3+, Mn2+ and Cu2+ To construct ionic equations to explain the qualitative analysis tests of cations and anions Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons including using your own lesson PowerPoints is a fundamental skill of a qualified/unqualified teacher that will be reviewed during these scenarios outlined above