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CAIE A2 Chemistry 9701
What Will You Learn?
- Good teaching and learning will incorporate and reinforce a subject’s key concepts to help students gain:
- A greater depth as well as breadth of subject knowledge
- Confidence, especially in applying knowledge and skills in new situations
- The vocabulary to discuss their subject conceptually and show how different aspects link together
- A level of mastery of their subject to help them enter higher education.
Course Content
Chemical energetics
Learning outcomes
Candidates should be able to:
1 define and use the terms:
(a) enthalpy change of atomisation, ΔHat
(b)lattice energy, ΔHlatt (the change from gas phase ions to solid lattice)
2 (a)define and use the term first electron affinity, EA
(b)explain the factors affecting the electron affinities of elements
(c)describe and explain the trends in the electron affinities of the Group 16 and Group 17 elements
3. construct and use Born–Haber cycles for ionic solids (limited to +1 and +2 cations, –1 and –2 anions)
4. carry out calculations involving Born–Haber cycles
5. explain, in qualitative terms, the effect of ionic charge and of ionic radius on the numerical magnitude of a lattice energy
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06:14
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20:17
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20:17
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09:25
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3 – Born Haber Cycle : Example Question
09:35 -
10:23
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5 – Born Haber Cycle : Example Question
08:39 -
7 – Born Haber Cycle : Example Question
09:28 -
6 – Born Haber Cycle : Example Question
09:18 -
Live Lecture on Enthalpy Change of Solution, Lattice Energy and Hydration
28:13 -
Live Lecture on Born Haber Cycle and Enthalpy Change of Solution
26:39 -
Live Class – A2 Chemistry – Past Paper Practice for Lattice Energy
19:49 -
Live Class A2 – 15th October 2020 – Energetics Introduction, Born Haber Cycle
28:23 -
Question on Electrochemistry, Ksp, Lattice Energy, pH, Enthalpy of Solution
15:20
Enthalpies of solution and hydration
Entropy change, ΔS
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32:52
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Gibbs Free Energy : Part 1 : Change in Entropy and Workdone
09:17 -
Calculating Entropy Change of a Reaction
06:24 -
Predicting Sign of Entropy Change : Part 1
07:30 -
Entropy Calculations : Part 2
10:27 -
Entropy Calculations : Part 1
08:19 -
Entropy, Microstates & Probability
07:04 -
What is Entropy
10:10 -
Predicting Sign of Entropy Change : Part 2 (Past Paper Questions)
10:27
Gibbs free energy change, ΔG
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09:17
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Gibbs Free Energy : Part 2 : Gibbs Free Energy Equation
16:22 -
Gibbs Free Energy : Part 3 : Past Paper Questions
15:04
Electrolysis
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37:46
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30:42
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37:10
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Live Class – A2 FWC – Electrode Potential, Lechatelier Principle, Nernst Equation, Electrolysis
35:55 -
26:40
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2 – Electrolysis using Standard Electrode Potentials
10:00 -
Electrolysis of Aqueous Solutions using Active Electrodes : Part 2 : Electroplating
14:37 -
Moles & Electrolysis, Moles & Mass
05:32 -
Electrolysis of Aqueous Solutions using Active Electrodes : Part 2 : Electroplating
14:37 -
Electrolysis of Aqueous Solutions : Part 3 : Examples
14:37 -
Electrolysis of Molten Electrolytes : Part 2
10:04 -
Electrolysis of Molten Electrolytes : Part 1
19:31 -
Electrolysis of Aqueous Solutions using Active Electrodes : Part 1
14:02 -
Electrolysis of Aqueous Solutions : Part 2 : Examples
17:55 -
Electrolysis of Aqueous Solutions : Part 1
18:02
Standard electrode potentials E⦵; standard cell potentials E⦵cell and the Nernst equation
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08:53
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33:10
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37:46
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Past Paper Question – Electrochemistry, Standard Electrode Potential
21:05 -
33:43
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35:38
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36:22
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Live Class – A2 BPC – Past Paper Questions, Electrochemistry, Electrode Potential
33:01 -
Live Class – A2 FWC – Electrolysis, Electrochemistry, Electrode Potentials
30:42 -
37:10
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Live Class – A2 FWC – Electrode Potential, Lechatelier Principle, Nernst Equation, Electrolysis
35:55 -
Live Class – A2 FWC – Standard Electrode Potential, Lechatelier Principle and Nernst Equation
32:40 -
Live Class – A2 BPC – Chain Reactions, Redox, Electrode Potentials
44:29 -
Live Class – A2 BPC – Constructing Redox Equations using Electrode Potentials (24-8-2020)
33:24 -
Live Class : A2 BPC : Constructing Redox Reactions using Electrode Potentials ( 24-8-2020)
32:54 -
Live Class – A2 FWC – Writing Redox Equations Using Electrode Potentials (19th August 2020)
30:58 -
Live Class – BPC A2 – Standard Electrode Potential, S.H.E, Electrochemical Cell – 17th August
41:38 -
Live Class : A2 Chem : Electrochemistry, Electrode Potentials, Electrochemical Cells
25:00 -
Live Class A2 BPC on Standard Electrode Potential : Part 2
05:13:56 -
Live Class A2 BPC on Standard Electrode Potential : Part 1
53:40 -
Electrode Potential, Redox Equations, Empirical Formula
12:34 -
6 – Constructing Redox Reactions using Electrode Potentials : Example Question
09:49 -
5 – Constructing Redox Reactions using Electrode Potentials : Example Question
33:45 -
4 – Constructing Redox Reactions using Electrode Potentials : Example Question
18:30 -
2 – Electrolysis using Standard Electrode Potentials
10:00 -
1 – Electrolysis using Standard Electrode Potentials
26:40 -
3 – Constructing Redox Reactions using Electrode Potentials : Example Question
17:12 -
1 – Constructing Redox Equations Using Electrode Potentials
07:07 -
2 – Constructing Redox Equations Using Electrode Potentials
13:36 -
Electrochemistry for A’Levels : Part 2 : Introducing Electrode Potential
14:43 -
Electrochemistry for A’Levels : Part 1 : Introducing Electrode Potential
12:22 -
Live Class – A2 Chem – Electrochemistry, Electrode Potential and Nernst Equation
33:10 -
Live Class – A2 FWC – Electrode Potential, Lechatelier Principle, Nernst Equation, Electrolysis
35:55 -
Live Class – A2 FWC – Standard Electrode Potential, Lechatelier Principle and Nernst Equation
32:40
Acids and bases
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34:07
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37:28
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Live Class – A2 FWC – Acids and Bases (20-8-2020)
31:50 -
47:04
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Acid Dissociation Constant Ka for Weak Acids
17:05 -
13:29
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Constructing Equations : Reacting Bases with Acids : Part 1
07:39 -
Constructing Equations : Reacting Bases with Acids : Part 2
07:39 -
Constructing Equations : Reacting Bases with Acids : Part 3
04:29 -
Constructing Equations : Reacting Bases with Acids : Part 4
03:37 -
Constructing Equations : Reacting Metals with Acids
17:27 -
Formulas of Acids
04:08 -
Lewis definition of Acids & Bases
11:23 -
Bronsted Lowry definition for Acids & Bases
07:26 -
Part 9 – A’level Organic Chem – Acylchlorides, Ester, Comparison of Bases
38:36 -
Constructing Equations : Reacting Ammonium Salts with Bases
16:01 -
Formulas of Bases/Alkalis
05:11
Partition coefficients
Simple rate equations, orders of reaction and rate constants
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29:10
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Live Class – A2 Chem – Reaction Kinetics, Order of a Reaction, Rate Equation, Rate Constant – Part 1
44:06 -
Live Class – A2 Chem – Reaction Kinetics, Order of a Reaction, Rate Equation, Rate Constant – Part 2
42:31 -
Live Class – A2 Chem – Reaction Kinetics, Order of a Reaction, Rate Equation, Rate Constant – Part 3
36:14 -
Live Class – A2 Chem – Reaction Kinetics, Order of a Reaction, Rate Equation, Rate Constant – Part 4
48:50 -
Live Class – A2 Chem – Reaction Kinetics, Order of a Reaction, Rate Equation, Rate Constant – Part 5
01:09:03 -
Question on pH, rate equation, rate constant, finding units of rate constant
05:11
Homogeneous and heterogeneous catalysts
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08:53
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Live Class – Transition Metals Part 2 – High Density, Variable Oxidation States, Good Catalysts
37:03 -
Class 2 – M2/E5 – Transition Metals, Good Catalyst
35:22 -
Reversible Reactions 6 : Le Chatelier Principle and Catalyst
04:49 -
Homogeneous Catalyst
09:20
Similarities and trends in the properties of the Group 2 metals, magnesium to barium, and their compounds
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14:20
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Explaining Solubility of Group 2 Sulfates & Hydroxides : Part 2
10:16 -
Explaining Solubility of Group 2 Sulfates & Hydroxides : Part 3
06:29
General physical and chemical properties of the first row of transition elements, titanium to copper
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32:18
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37:03
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29:52
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Live Class – Transition Metals Part 4 – Ligand Exchange, Copper and Cobalt ions
26:24 -
Live Class – Transition Metals Part 5 – Why are Transition Metals Colored
40:07 -
Class 1 – M2/E5 BMI – Transition Metals Introduction, D subshell, Densities
42:32 -
Class 2 – M2/E5 – Transition Metals, Good Catalyst
35:22 -
Geometric (Cis/Trans) and Optical Isomers in Transition Metal Complexes
27:54 -
Live A2 Chemistry Class – Why are Transition Metal Compounds Colored – 5th August
38:22
Colour of complexes
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07:37
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27:54
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Live Class – Transition Metals Part 3 – Complex Ions, Ligands and Colors
29:52 -
Question on Complex Ions and Test of Anions
06:58 -
35 – 9701_s14_qp_12 (AS) : Metal Complex
02:14
Stereoisomerism in transition element complexes
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41:27
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Live Class – AS Mega Lecture – Stereo Isomers, Geometric Isomers
28:11
Formulae, functional groups and the naming of organic compounds
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42:45
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40:34
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43:24
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Organic Nomenclature Part 1 : Naming simple Alkanes & Alkenes
22:48 -
Organic Nomenclature Part 2 : Naming Simple Alcohols
11:37 -
Organic Nomenclature Part 3 : Naming Simple Carboxylic Acids
08:34 -
Organic Nomenclature Part 5 : Naming Branched Alkanes
12:41 -
Structural Isomers Part 3 : Functional Group Isomerism
04:38 -
Structural Formula, Naming Organic Compounds
03:19
Characteristic organic reactions
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11:37
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Organic Mechanism : Electrophilic Addition of Alkenes : Part 2 : Hydrohalogenation
02:36 -
03:38
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43:17
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50:28
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Part 4 – A Levels Organic Chem, Bromination and Nitration of Benzene, Electrophilic Substitution
36:13 -
Part 5 – A Levels Organic Chem, 2,4 directing group & 3 directing group, electrophilic substitution
29:24 -
Part 7 – A Level Organic Chem, 2,4-Directing Groups, 3,5-Directing Groups, Electrophilic Subst.
40:49 -
Live Class – A2 Mega Lecture – Electrophilic Substitution Mechanism, 2,4 and 3,5 Directing Groups
39:56 -
Live Class – A2 Mega Lecture – Benzene and Electrophilic Substitution
32:17 -
Live Class – A2 Mega Lecture – Electrophilic Addition of Alkenes, Bromination, Markovnikov Rule
33:58 -
Live Class – A2 Mega Lecture – Electrophilic Addition of Alkenes, Bromination, Markovnikov Rule
33:58 -
Live Class – A2 Mega Lecture – Addition and Oxidation Reactions of Alkenes
40:19
Shapes of aromatic organic molecules; σ and π bonds
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07:07
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11:13
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07:54
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12:49
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08:58
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08:33
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05:13
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How to Predict Shape, Geometry & Bond Angles in a Molecule : Part 7
04:02 -
How to Predict Shape, Geometry & Bond Angles in a Molecule : Part 10
09:41 -
How to Predict Shape, Geometry & Bond Angles in a Molecule : Part 9
02:49 -
How to Predict Shape, Geometry & Bond Angles in a Molecule : Part 8
03:39 -
Live Class – AS Chemistry – Sigma Bonds
30:22 -
Chemical Bonding for A’Levels : Part 1 : Sigma Bonds
19:52 -
Chemical Bonding for A’Levels : Part 2 : Sigma Bonds Examples
12:24 -
Live Class – AS Chemistry – Pi Bonds
38:58 -
Part 3 – A Levels Organic Chem, Structure of Benzene, Electrophilic Substitution, Pi Electron Cloud
50:28 -
1 – Benzene : Structure of Benzene, Pi Electron Cloud and sp2 Hybridization
21:36 -
Chemical Bonding for A’Levels : Part 4 : Pi Bonding – Example of a Triple Bond
07:27 -
Chemical Bonding for A’Levels : Part 3 : Pi Bonding Introduction
08:18
Isomerism: optical
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08:57
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07:59
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10:50
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04:46
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04:38
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Live Class – AS Organic Chemistry Part 5 – Structural Isomers, Stereo Isomers, Geometric Isomers
41:28 -
Live Class – AS Organic Chemistry Part 6 – Examples of Geometric Isomers
34:41 -
Live Class – AS Organic Chemistry Part 7 – Optical Isomers, Chiral Centre
34:51 -
Geometric (Cis/Trans) and Optical Isomers in Transition Metal Complexes
27:54 -
Question on Chirality, Optical Isomers
02:07 -
Live Class – AS Mega Lecture – Geometric Isomers, Cis, Trans (20-8-2020)
27:34 -
Live Class – AS Mega Lecture – Stereo Isomers, Geometric Isomers
28:11 -
Live AS Class IUPAC Nomenclature and Structural Isomers Introduction
30:30 -
Live Class – AS Mega Lecture – Structural Isomers and their Types
37:38
Halogen compounds
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18:57
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17:50
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5 – Nucleophilic Substitution : Reaction Mechanism for Secondary Halogenalkanes (Sn1 or Sn2)
11:07 -
23 – 9701_w11_qp_11 : Alcohols, Carboxylic Acids, Halogenoalkanes, Halide Test
02:29 -
Organic Mechanism : Electrophilic Addition of Alkenes : Part 2 : Hydrohalogenation
02:36
Alcohols
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32:29
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Part 8 – A Levels Organic Chem, Stregnth of Acids, Alcohols, Phenols, Carboxylic Acids
35:54 -
Comparing Organic Acids : Alcohols, Phenols & Carboxylic Acids
47:04
Carboxylic acids and derivatives
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35:54
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34:07
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Comparing Organic Acids : Alcohols, Phenols & Carboxylic Acids
47:04 -
Why do Carboxylic Acids Ionize in Aqueous State
06:02 -
Comparing Stregnth of Sulfonic Acid with Carboxylic Acid
07:02 -
Organic Nomenclature Part 3 : Naming Simple Carboxylic Acids
08:34
Esters
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36:33
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38:36
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Live Class – A2 Mega Lecture – Polyesters, Crosslinking, Branching, Properties of Polymers 15-9-2020
33:59 -
Live Class – A2 Mega lecture – Ester Formation (Carboxylic Acid and Acyl Chlorides)
34:07
Acyl chlorides
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34:07
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A Levels Organic Chem, Hydrolysis of Chlorobenzene, Halagenoalkane, Acylchloride
38:23 -
Part 6 – A Levels Organic Chem, Substitution of Phenols and Phenyl Amine, Alkylation, Acylation
00:00 -
Part 9 – A’level Organic Chem – Acylchlorides, Ester, Comparison of Bases
38:36
Primary and secondary amines
Phenylamine and azo compounds
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40:41
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A Levels Organic Chem, Substitution of Phenols and Phenyl Amine, Alkylation, Acylation
32:29
Condensation polymerization
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Live Class – A2 Mega Lecture – Polyesters, Crosslinking, Branching, Properties of Polymers 15-9-2020
33:59 -
4 – 9701_w19_qp_22 : Alkenes, Oxidation of Alcohols, Isomers, Addition Polymer, Infrared,
18:12 -
5 – 9701_m19_qp_42 : Addition Polymer, Esters, Nucleophilic Addition, Ketones, Cyanohydrins
09:04 -
4 – 9701_w17_qp_22 : Reaction Mechanism, Addition Polymer, Nucleophilic Substitution, Stereo Isomers
21:12
Thin-layer chromatography
Gas / liquid chromatography
Carbon-13 NMR spectroscopy
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44:49
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30:22
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Live Class – A2 Chemistry – Mass Spectroscopy Part 2
39:03 -
Live Class – A2 Chemistry – Mass Spectroscopy Part 3
35:16 -
Question on Mass Spectroscopy for A Levels
05:16 -
Interpreting Infrared Spectroscopy
15:45
Proton (1H) NMR spectroscopy
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47:17
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44:49
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57:18
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Live Class – A2 Chemistry – Past Paper Practice for NMR
42:35 -
Live Class – A2 Chemistry – Past Paper Practice for NMR
32:24 -
Nuclear Magnetic Resonance (H-NMR) : Part 2 : H-NMR Solvents, TMS and Chemical Shift
27:14 -
Nuclear Magnetic Resonance (H-NMR) : Part 1
32:16 -
8 – 9701_w14_qp_41 : Nuclear Magnetic Resonance (H-NMR)
22:03 -
8 – 9701_w13_qp_43 : Nuclear Magnetic Resonance (H-NMR)
17:21
A2 Chemistry Past Paper Session
Equilibria
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A Level Equilibria 1 | A2 Chemistry | 9701 | AS Revision of Kc and Kp
39:30 -
A Level Equilibria 2 | A2 Chemistry | 9701 | AS Revision of Kc and Kp
37:54 -
A Level Equilibria 3 | A2 Chemistry | 9701 | Kc & Kp Revision and Water Constant Kw
40:29 -
A Level Equilibria 4 | A2 Chemistry | 9701 | pH of Strong Acids & Bases
35:54 -
A Level Equilibria 5 | A2 Chemistry | 9701 | pH of Strong Acids & Bases
38:34 -
A Level Equilibria 6 | A2 Chemistry | 9701 | pH of Strong Acids & Bases
52:56 -
A Level Equilibria 7 | A2 Chemistry | 9701 | pH of Weak Acids
36:21 -
A Level Equilibria 8 | A2 Chemistry | 9701 | Weak Acids, Ka, Past Paper Questions
41:26 -
A Level Equilibria 9 | A2 Chemistry | 9701 | Weak Acids – Ka – Past Paper Questions
38:49 -
A Level Equilibria 10 | A2 Chemistry | 9701 | Weak Acids, Past Paper Questions, Buffer Introduction
41:42 -
A Level Equilibria 11 | A2 Chemistry | 9701 | Buffer Solutions, Weak Acids and Conjugate Bases
43:18 -
A Level Equilibria 12 | A2 Chemistry | 9701 | Buffer Solutions, pH Curves
41:46 -
A Level Equilibria 13 | A2 Chemistry | 9701 | Buffer Solutions, pH Curves
45:03 -
A Level Equilibria 14 | A2 Chemistry | Solubility Product | Ksp
42:00 -
A Level Equilibria 15 | A2 Chemistry | Solubility Product | Ksp | Past Papers Solved
46:52 -
A Level Chemistry | Chemical Equilibria – Lecture 16 – Partition Coefficients | 9701
42:07
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