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Online Videos –

JC 1 Promos Review

These videos of our regular classes are available to our regular class students.

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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.

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The following three topics are under Promos review:

Promos Review (1) – Chemical Bonding
J1A-17_Mid-Year_Review_–_Chemical_Bond
Video 1-1

  • Overview

  • Dot-and-cross diagrams and VSEPR theory (Q1)

J1A-17_Mid-Year_Review_–_Chemical_Bond
Video 1-2

  • Shortcut method to draw Lewis structures (Q2)

  • Polarity of simple molecules and intermolecular forces (Q3)

J1A-17_Mid-Year_Review_–_Chemical_Bond
Video 1-3

  • Analysing and explaining physical property trends (Q4, Q5)

J1A-17_Mid-Year_Review_–_Chemical_Bond
Video 1-4

  • Analysing and explaining physical property trends (Q6, Q7)

J1A-17_Mid-Year_Review_–_Chemical_Bond
Video 1-5

  • Analysing and explaining physical property trends (Q8)

J1A-17_Mid-Year_Review_–_Chemical_Bond
Video 1-6

  • Explaining solubility (Q9)

Promos Review (2) – Chemical Energetics
15_Promos_Review_–_Energetics_(1-1).jp
Video 1-1

  • Review the experimental determination of enthalpy changes (Q1)

  • Review the use of cooling graphs (Q2)

15_Promos_Review_–_Energetics_(1-4).jp
Video 1-4

  • Review the drawing of Born-Haber cycles (Q8)

  • Review the energetics of dissolution processes (Q9)

15_Promos_Review_–_Energetics_(1-2).jp
Video 1-2

  • Review the calculation of enthalpy changes without energy cycles:

  • short-cut equations (Q3)

  • bond energy method (Q4)

  • algebraic method (Q5)

15_Promos_Review_–_Energetics_(1-3).jp
Video 1-3

  • Review the drawing of energy cycles and the use of Hess' Law (Q6, Q7)

15_Promos_Review_–_Energetics_(1-5).jp
Video 1-5

  • Review the spontaneity of reactions and qualitative discussions involved Gibbs free energy and entropy (Q10, Q11, Q12)

Promos Review (3) – Reaction Kinetics
15-2 Promos Review – Kinetics (1-1).jpg
Video 1-1

  • Review of reaction kinetics fundamentals

15-2 Promos Review – Kinetics (1-2).jpg
Video 1-2

  • Design of experiment for finding orders of reaction for two or more reactants (Q1)

15-2 Promos Review – Kinetics (1-3).jpg
Video 1-3

  • Finding order of reaction for reactant in excess (Q2)

15-2 Promos Review – Kinetics (1-4).jpg
Video 1-4

  • Finding order of reaction from product-time graphs (Q3)

15-2 Promos Review – Kinetics (1-5).jpg
Video 1-5

  • Finding order of reaction from initial rate tables.

  • Relating mechanism and rate equations (Q4, Q5, Q6)

15-2 Promos Review – Kinetics (1-6).jpg
Video 1-6

  • Catalysis (Q7 – Q11)

Promos Review (4) – Acid-Base Equilibria
Promos - Acid-Base
15-3_Promos_Review_–_Acid-Base_Equilib
15-3_Promos_Review_–_Acid-Base_Equilib
15-3_Promos_Review_–_Acid-Base_Equilib
Video 1-1

  • Overview, and the ionic product of water, Kw (Q1)

Video 1-2

  • Calculating pH of solutions (Q1 – Q6)

Video 1-3

  • Buffer-related questions (Q7, Q8)

15-3_Promos_Review_–_Acid-Base_Equilib
Video 1-4

  • Sketching titration graphs, and calculating main pH values (Q9)

15-3_Promos_Review_–_Acid-Base_Equilib
Video 1-5

  • Titration graphs and choice of indicators (Q10)

15-3_Promos_Review_–_Acid-Base_Equilib
Video 1-6

  • Polyprotic titration graphs (Q11)

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