Online Videos –
JC 2 Prelims Review
These videos of our regular classes are available to our regular class students.
Each lesson is broken up into a few videos. In the description below each video, you can look for the content or question that you would like to view or revisit.
JC2 Prelims Review – Atomic Structure and Chemical Bonding
Video 1-1
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Physical property trends of Period 3 elements: atomic radius, ionic radius, 1st IE
Video 1-2
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Q1: 2nd IE trends
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Q2: Successive ionisation energies
Video 1-3
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Dot-and-cross diagrams and VSEPR shapes
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Q3: drawing dot-and-cross diagrams, and application of VSEPR theory
Video 1-4
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Q4, Q5: Shortcut method of drawing Lewis structures
Video 1-7
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Q9: explaining melting point trends
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Q10: question applying van der Waals (VDW) forces
Video 1-5
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Q6: determining intermolecular forces
Video 1-8
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Q11: answering solubility questions
Video 1-6
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Q7, Q8: Analysis of, and strategy for answering chemical bonding questions
Video 1-9
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Physical property trends of Period 3 elements: melting points, and electrical conductivities
JC2 Prelims Review – The Periodic Table
Video 1-1
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Overview of the periodic trends of Period 3 oxides and chlorides
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Reactions of the Period 3 oxides with water (Q1)
Video 1-2
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Acid-base reactions of the Period 3 oxides and hydroxides (Q2)
Video 1-3
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Reactions of the Period 3 chlorides with water (Q3)
Video 1-4
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Periodic trends of Period 3 hydroxides (Q4)
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Group trends of the Group 14 dioxides (Q5)
Video 1-5
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Group 2 reducing agents (Q6)
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Group 17 oxidising agents (Q7)
Video 1-6
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Thermal stability of Group 2 carbonates (Q8)
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Thermal stability of Group 17 hydrides (Q9)
JC2 Prelims Review – Reaction Kinetics
Video 1-1
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Overview
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Shapes of conc-time graphs and rate-conc graphs
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Design of experiments to determine orders of reactions
Video 1-2
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Q1: Determining orders of reaction from conc-time graph; Drawing reaction profile diagrams
Video 1-3
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Q2: Determining orders of reaction from volume-time graph; Proposing mechanisms
Video 1-4
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Q3: Determining orders of reaction from product-time graph
Video 1-5
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Q4: Determining order of reaction of reactant in excess
Video 1-6
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Q5: Initial rates method
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Q6: Iodine clock experiment with initial rates table of volumes
Video 1-7
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Q7: Rates-conc graphs; Determination of activation energy.
Prelims Review – Chemical Equilibria
Video 1-1
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Q1: Kc and ICE in mol and mol dm^-3
Video 1-4
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Q4: Kp and ICE table in mol
Video 1-2
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Q2: Kp and ICE table in atm
Video 1-3
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Q3: Kp and Le Chatelier's Principle
Video 1-5
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Q5: Heterogeneous systems and applying LCP
Prelims Review – Solubility Equilibria
Video 1-1
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Overview
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Calculating solubility and solubility products (Q1, Q2, Q3, Q4)
Video 1-2
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Ionic products and precipitation (Q5, Q6)
Video 1-3
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Common ion effect on solubility (Q7, Q8, Q9)
Video 1-4
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Complex ion effect on solubility (Q10)
Video 1-5
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Separation of ions utilising solubilities (Q11, Q12)
Prelims Review – Acid-Base Equilibria
Video 1-1
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Overview
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Q1: basic pH calculations
Video 1-4
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Q6: titration graph and pH calculations
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Q7: titration graph and indicators
Video 1-2
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Q2, Q3: buffer solutions
Video 1-3
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Q4: buffer solutions
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Q5: blood buffer system
Video 1-5
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Q8: pH calculations and sketching a titration graph
Video 1-6
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Q9: polyprotic titration graph and pH calculations
Video 1-7
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Q10: Shortcut method for sketching polyprotic titration graph
Prelims Review – Electrochemistry
Video 1-1
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Q1: Electrochemical cells
Video 1-4
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Q5, Q6: Electrolytic cells
Video 1-2
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Q2: Cell diagrams with SHE, and effects of non-standard conditions
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Q3: Electrochemical cell practice
Video 1-3
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Q4: Ecell and Feasibility of reactions
Video 1-5
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Q7: Electrolytic cell practice