Online Videos –
JC 1 Promos 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.
The following three topics are under Promos review:
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Chemical Energetics
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Reaction Kinetics
Promos Review (1) – Chemical Bonding
Video 1-1
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Overview
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Dot-and-cross diagrams and VSEPR theory (Q1)
Video 1-2
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Shortcut method to draw Lewis structures (Q2)
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Polarity of simple molecules and intermolecular forces (Q3)
Video 1-3
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Analysing and explaining physical property trends (Q4, Q5)
Video 1-4
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Analysing and explaining physical property trends (Q6, Q7)
Video 1-5
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Analysing and explaining physical property trends (Q8)
Video 1-6
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Explaining solubility (Q9)
Promos Review (2) – Chemical Energetics
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Video 1-1
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Review the experimental determination of enthalpy changes (Q1)
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Review the use of cooling graphs (Q2)
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Video 1-4
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Review the drawing of Born-Haber cycles (Q8)
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Review the energetics of dissolution processes (Q9)
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Video 1-2
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Review the calculation of enthalpy changes without energy cycles:
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short-cut equations (Q3)
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bond energy method (Q4)
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algebraic method (Q5)
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Video 1-3
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Review the drawing of energy cycles and the use of Hess' Law (Q6, Q7)
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Video 1-5
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Review the spontaneity of reactions and qualitative discussions involved Gibbs free energy and entropy (Q10, Q11, Q12)
Promos Review (3) – Reaction Kinetics
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Video 1-1
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Review of reaction kinetics fundamentals
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Video 1-2
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Design of experiment for finding orders of reaction for two or more reactants (Q1)
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Video 1-3
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Finding order of reaction for reactant in excess (Q2)
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Video 1-4
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Finding order of reaction from product-time graphs (Q3)
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Video 1-5
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Finding order of reaction from initial rate tables.
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Relating mechanism and rate equations (Q4, Q5, Q6)
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Video 1-6
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Catalysis (Q7 – Q11)
Promos Review (4) – Acid-Base Equilibria
Video 1-1
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Overview, and the ionic product of water, Kw (Q1)
Video 1-2
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Calculating pH of solutions (Q1 – Q6)
Video 1-3
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Buffer-related questions (Q7, Q8)
Video 1-4
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Sketching titration graphs, and calculating main pH values (Q9)
Video 1-5
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Titration graphs and choice of indicators (Q10)
Video 1-6
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Polyprotic titration graphs (Q11)