Edexcel IAL · AS

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Edexcel IAL AS Chemistry.

82 lessons · 3 units

WCH11

Unit 1: Structure, Bonding and Introduction to Organic Chemistry

The first AS paper. Covers atomic structure, formulae, equations, bonding, and introductory organic chemistry.

37 lessons

Lesson 01
Definitions, formulae and the mole
1.11.2
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Lesson 02
Relative atomic mass and isotopic mass
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Lesson 03
The mole and Avogadro constant
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Lesson 04
Solution concentration
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Lesson 05
Molar mass and mass–mole conversions
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Lesson 06
Reacting masses and stoichiometry
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Lesson 07
Gases — molar volume and the ideal gas equation
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Lesson 08
Percentage yield and atom economy
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Lesson 09
Empirical and molecular formulae
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Lesson 10
Experimental formula determination
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Lesson 11
Atoms, subatomic particles and isotopes
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Lesson 12
Mass spectrometry — principles and isotopic composition
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Lesson 13
Molecular ion peaks and diatomic mass spectra
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Lesson 14
Ionisation energies and evidence for shells
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Lesson 15
Orbital and subshell filling rules
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Lesson 16
Electronic configurations across s, p, d block
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Lesson 17
Periodicity and ionisation energy trends
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Lesson 18
Melting and boiling trends in Periods 2 and 3
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Lesson 19
Ionic bonding and lattices
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Lesson 20
Ionic radius, charge and polarisation
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Lesson 21
Covalent bonding and dot-and-cross diagrams
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Lesson 22
Carbon giant covalent structures (diamond, graphite, silicon dioxide)
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Lesson 23
Metallic bonding and properties of metals
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Lesson 24
Shapes of molecules (VSEPR theory)
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Lesson 25
Electronegativity and bond polarity
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Lesson 26
Intermolecular forces — London and permanent dipole
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Lesson 27
Hydrogen bonding and anomalous properties of water
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Lesson 28
Linking structure to physical properties
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Lesson 29
Introduction to organic chemistry and IUPAC nomenclature
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Lesson 30
Structural isomerism and types of formulae
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Lesson 31
Alkanes — properties and combustion
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Lesson 32
Free radical substitution of alkanes
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Lesson 33
Crude oil, fractional distillation and cracking
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Lesson 34
Alkenes — structure and bonding
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Lesson 35
Electrophilic addition reactions of alkenes
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Lesson 36
Addition polymerisation and uses of polymers
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Lesson 37
Polymer disposal and Unit 1 consolidation
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WCH12

Unit 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols

The second AS paper. Covers energetics, kinetics, equilibria, group chemistry, and organic chemistry.

42 lessons

Lesson 38
Enthalpy changes and sign conventions
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Lesson 39
Standard enthalpy changes — definitions
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Lesson 40
Calorimetry and q = mcΔT calculations
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Lesson 41
Hess's Law and energy cycles

WCH13

Unit 3: Practical Skills in Chemistry I

Practical assessment for AS — apparatus, procedures, and analysis.

3 lessons

Core Practical
Lesson 80
Core Practical 1: Acid–base titration and Mr determination
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Core Practical
Lesson 81
Core Practical 2: Preparation of an organic liquid or solid
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Core Practical
Lesson 82

Unit 1: Structure, Bonding and Introduction to Organic Chemistry

Definitions, formulae and the mole

Relative atomic mass and isotopic mass

The mole and Avogadro constant

Solution concentration

Molar mass and mass–mole conversions

Reacting masses and stoichiometry

Gases — molar volume and the ideal gas equation

Percentage yield and atom economy

Empirical and molecular formulae

Experimental formula determination

Atoms, subatomic particles and isotopes

Mass spectrometry — principles and isotopic composition

Molecular ion peaks and diatomic mass spectra

Ionisation energies and evidence for shells

Orbital and subshell filling rules

Electronic configurations across s, p, d block

Periodicity and ionisation energy trends

Melting and boiling trends in Periods 2 and 3

Ionic bonding and lattices

Ionic radius, charge and polarisation

Covalent bonding and dot-and-cross diagrams

Carbon giant covalent structures (diamond, graphite, silicon dioxide)

Metallic bonding and properties of metals

Shapes of molecules (VSEPR theory)

Electronegativity and bond polarity

Intermolecular forces — London and permanent dipole

Hydrogen bonding and anomalous properties of water

Linking structure to physical properties

Introduction to organic chemistry and IUPAC nomenclature

Structural isomerism and types of formulae

Alkanes — properties and combustion

Free radical substitution of alkanes

Crude oil, fractional distillation and cracking

Alkenes — structure and bonding

Electrophilic addition reactions of alkenes

Addition polymerisation and uses of polymers

Polymer disposal and Unit 1 consolidation

Unit 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols

Enthalpy changes and sign conventions

Standard enthalpy changes — definitions

Calorimetry and q = mcΔT calculations

Hess's Law and energy cycles

Unit 3: Practical Skills in Chemistry I

Core Practical 1: Acid–base titration and Mr determination

Core Practical 2: Preparation of an organic liquid or solid

Enthalpy of combustion and formation calculations

Mean bond enthalpies and limitations

Energetics — exam-style problem solving

Oxidation numbers and redox definitions

Writing redox half-equations

Disproportionation reactions

Group 2 — physical properties and trends

Group 2 reactions with water and oxygen

Thermal stability of Group 2 carbonates and nitrates

Group 2 flame tests and hydroxide solubility

Qualitative tests for anions (sulfate, carbonate, halide)

Group 2 summary and practice

Group 7 — physical properties and trends

Halogen displacement reactions and oxidising power

Halogens with alkali — disproportionation

Reactions of halide ions with concentrated H₂SO₄

Chlorine in water treatment — benefits and ethics

Group 7 summary and practice

Collision theory and factors affecting rate

The Maxwell–Boltzmann distribution

Activation energy and effect of temperature

Catalysts and reaction profiles

Kinetics experiments and interpreting rate graphs

Dynamic equilibrium and reversible reactions

Le Chatelier — concentration and pressure

Le Chatelier — temperature and the role of catalysts

Industrial applications — Haber and Contact processes

Equilibria exam questions and practice

Halogenoalkanes — naming and classification

Nucleophilic substitution — Sn1 and Sn2 introduction

Elimination reactions of halogenoalkanes

CFCs, ozone depletion and environmental impact

Alcohols — classification and physical properties

Oxidation of alcohols — products and conditions