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Pearson Edexcel IAL Chemistry

Unit 4: Rates, Equilibria and Further Organic Chemistry

Unit 5: Transition Metals and Organic Nitrogen Chemistry

Topic 16: Redox Equilibria

16.1—The terms ‘oxidation’ and ‘reduction’ in terms of electron transfer and changes in oxidation number, applied to s-, p-

16.2—What is meant by the term ‘standard electrode potential’, Eo

16.3—The standard electrode potential, Eo, is measured in conditions of: i 298 K temperature ii 100 kPa pressure of gases iii

16.4—The features of the standard hydrogen electrode and understand why a reference electrode is necessary

16.5—Different methods are used to measure standard electrode potentials of: i metals or non-metals in contact with their ions

16.6—CORE PRACTICAL 12 Investigating some electrochemical cells

16.7—A standard emf, Eocell , by combining two standard electrode potentials

16.8—Write cell diagrams using the conventional representation of half-cells

16.9—The importance of the conditions when measuring an electrode potential, E

16.10—Standard electrode potentials to predict the thermodynamic feasibility of a reaction

16.11—Eocell is directly proportional to the total entropy change and to lnK for a reaction

16.12—The limitations of predictions made using standard electrode potentials, in terms of kinetic stability of systems

16.13—Standard electrode potentials are sometimes referred to as standard reduction potentials and can be listed as

16.14—How standard electrode potentials can be used to predict the thermodynamic feasibility of disproportionation reactions

16.15—Carry out both structured and unstructured titration calculations involving redox reactions

16.16—Discuss the uncertainty of measurements and their implications for the validity of the final results

16.17—CORE PRACTICALS 13a and 13b Carry out redox titrations with both: i iron(II) ions and potassium manganate(VII) ii sodium

16.18—Fuel cells use the energy released on the reaction of a fuel with oxygen to generate a voltage Knowledge that methanol

16.19—The electrode reactions that occur in a hydrogen-oxygen fuel cell Knowledge of hydrogen-oxygen fuel cells with both acidic

Topic 17: Transition Metals and their Chemistry

Topic 18: Organic Chemistry – Arenes

Topic 19: Organic Nitrogen Compounds: Amines, Amides, Amino Acids and Proteins

Topic 20: Organic Synthesis

Unit 6: Practical Skills in Chemistry II

Assessed mathematical skills and measurement conventions

A-Level/Edexcel/Chemistry//A2/Concept/Unit 5: Transition Metals and Organic Nitrogen Chemistry/Topic 16: Redox Equilibria/16.13—Standard electrode potentials are sometimes referred to as standard reduction potentials and can be listed as

Unit 5: Transition Metals and Organic Nitrogen Chemistry A2

Syllabus: 2017
Section: —
Level: A2

Exam analysis

Most tested topics

Topic 16: Redox Equilibria
Topic 17: Transition Metals and their Chemistry
Topic 18: Organic Chemistry – Arenes
Topic 19: Organic Nitrogen Compounds: Amines, Amides, Amino Acids and Proteins
Topic 20: Organic Synthesis