VCE Vault

VCE Chemistry (Year 12)

VCE Chemistry (Year 12) on VCE Vault: 26 lessons written for Year 12 (VCE, Victorian Certificate of Education), each with worked examples, practice questions and Aari, an AI tutor. The first 4 lessons are free; the whole subject is a one-off A$14.99.

VCE Chemistry past exams 2023–2025: 244 questions matched to these lessons.

VCE Chemistry (Year 12) study notes: 152 pages covering 26 topics (PDF, A$9.99).

Lessons

Unit 3 — Supplying Energy: Fuels, Cells and Electrolysis

  • Fuels, Combustion and Thermochemistry (free) — Classify fuels as fossil or biofuels, write balanced combustion equations, and compare energy densities.
  • Enthalpy and Calorimetry (free) — Use ΔH values in thermochemical equations and apply the calorimetry formula q = mcΔT to experimental data.
  • Redox Reactions and Galvanic Cells (free) — Write half-equations and overall redox equations, and predict the direction of current flow in a galvanic cell using standard electrode potentials.
  • Fuel Cells and Electrolysis (free) — Describe the hydrogen–oxygen fuel cell, compare it with combustion engines, and apply Faraday's laws to electrolysis calculations.
  • Rechargeable Batteries and Secondary Cells — Describe how rechargeable cells store and release energy, compare lead-acid with lithium-ion, and explain factors affecting cell cycle life.

Unit 3 — Optimising Rate and Yield

  • Reaction Rates and Collision Theory — Explain how concentration, temperature, surface area and catalysts affect reaction rate using collision theory and energy distributions.
  • Dynamic Equilibrium and Le Chatelier — Write Kc expressions and apply Le Chatelier's principle to predict shifts when concentration, pressure, or temperature changes.
  • Industrial Applications — Haber and Contact Processes — Analyse the Haber process (NH₃ synthesis) and Contact process (H₂SO₄) as compromises between yield, rate and economics.

Units 1–2 refresher (assumed knowledge)

  • Acids, Bases and pH — Apply the Brønsted–Lowry definition, identify conjugate pairs, and calculate pH for strong and weak acids.
  • Weak Acids, Buffers and pKa — Calculate pH for weak acid solutions and buffers, and explain how a buffer resists pH change.

Unit 4 — Organic Compounds: Structure and Synthesis

  • Organic Structure and Nomenclature — Identify functional groups and name organic molecules (alkanes, alkenes, alcohols, carboxylic acids, esters, amines, haloalkanes).
  • Organic Reactions — Substitution, Addition, Condensation — Predict products of addition reactions of alkenes, substitution reactions of haloalkanes, oxidation of alcohols, and esterification of carboxylic acids.
  • Reaction Pathways — Multi-Step Synthesis — Propose a reaction pathway (two or three steps) to convert one organic molecule to another, identifying reagents and conditions for each step.
  • Analytical Techniques — IR, NMR and Mass Spec — Interpret infrared (IR), ¹H NMR and mass spectra to identify organic compounds.
  • Stereoisomerism — Structural, Chain and E/Z Isomers — Distinguish types of isomerism and assign E/Z configuration to simple alkenes.
  • Polymers — Addition and Condensation — Compare addition and condensation polymerisation and identify the monomers and linkage type in common polymers.
  • Green Chemistry — Atom Economy and Sustainability — Calculate atom economy, evaluate reactions against green chemistry principles, and justify sustainable process choices.
  • Optical Isomers — Chirality, Enantiomers and Medicines — Identify chiral centres, distinguish optical (enantiomers) from cis–trans isomers, and explain why enantiomers can have different biological effects.

Unit 4 — Analysing and Using Organic Compounds

  • Biomolecules — Carbs, Proteins, Lipids — Describe the structure of carbohydrates, proteins, and lipids, and relate properties (e.g. solubility) to structure.
  • Enzymes and Coenzymes in Metabolism — Explain enzyme specificity using the induced fit model and the effects of temperature and pH on enzyme activity.
  • Energy Content of Food — Calorimetry Applied — Calculate the energy content of food samples using bomb calorimetry data and compare to nutrition label values.
  • Food Analysis — Volumetric and Spectroscopic Methods — Apply acid-base and redox titrations, HPLC, and UV-visible spectroscopy to food analysis problems.
  • Titration Curves and Indicator Selection — Interpret titration curves for the four strong/weak acid-base combinations and choose an appropriate indicator.
  • Multi-Step Spectroscopy Problems — IR, NMR and MS Together — Combine IR, proton NMR and mass spectrometry data to identify an unknown organic compound.
  • Medicinal Chemistry — Extracting, Purifying and Testing Natural Medicines — Explain how medicinal compounds are extracted from natural sources and purified (solvent extraction, distillation), how purity and identity are confirmed, and how enzymes and competitive inhibitors relate to how medicines work.

Exam Preparation and Technique

  • Chemistry Exam Technique and Stoichiometry Traps — Execute the Chemistry exam with time discipline and avoid the five most common VCAA-reported stoichiometry and balancing errors.