FAD1018 Final Exam Scope — Complete Guide

[!note] Single authoritative exam scope document. Merges multiple data sources:

  1. Past year patterns — 3 transcribed finals (2022-23, 2023-24, 2024-25)
  2. Student leaks — WhatsApp messages (2026-05-13/14)
  3. Academic clinic notes — Direct information from lecturers via clinic attendees

1. Exam Structure

Historical Pattern (from 3 past years)

Section Format Marks Effective
A 8 compulsory questions ~40 ~40
B 4-5 long questions → pick 3-4 ~60 ~36-48
Total ~12-13 questions attempted ~100 ~80

Key Insight for 2025-2026

[!warning] Organic + Stereochemistry Merge Majority of organic chemistry questions are merged with stereochemistry. Expect combined topics rather than pure organic questions.

2. Section A — Structured Questions (8 Topics)

# Topic Marks Key Focus Definition Risk
A1 Alcohol ~5 Reactions, mechanisms Low
A2 Carbonyl ~5 Aldehydes & ketones Low
A3 Phenol ~5 Acidity, reactions Low
A4 Amine ~5 Basicity, reactions Medium
A5 Ionic Equilibrium ~5 Basic calculations Low
A6 Thermochemistry ~5 Definitions critical HIGH
A7 Chemical Kinetics ~5 Rate laws, graphs Low
A8 Electrochemistry ~5 Calculations None expected

Section A Critical: Thermochemistry Definitions

From Dvesh (academic clinic):

Question Wording What to Include
"Enthalpy of formation" Definition ONLY — do NOT mention standard conditions (25°C, 1 atm)
"Enthalpy of formation under standard condition" Definition + mention 25°C, 1 atm

Reference: PYP 22/23 Q7

[!danger] Exact Wording Trap This is a common trap. Only mention standard conditions if the question explicitly includes "standard condition" in the wording.

Key Definitions to Memorize:

  • Enthalpy of formation (ΔHf)
  • Enthalpy of combustion (ΔHc)
  • Enthalpy of neutralization
  • Hess's Law

3. Section B — Long Questions (Pick 3-4 of 5-6)

Question Topic Marks Difficulty Verdict
B1 Chemical Equilibrium ~12 Medium ✅ Standard
B2 Ionic Equilibrium (Titration) ~12 Medium-Hard ✅ High priority
B3 Phase Equilibrium ~12 Medium ✅ Strongest pick
B4 Alcohol + Stereochem ~12 Hard ✅ If organic strong
B5 Carboxylic Acid + Stereochem ~12 Hard ⚠️ Puzzle-type
B6 Amino Acid + Polymer ~12 Medium ✅ Definition-heavy
B7 Kinetic Chemistry ~12 Medium ✅ Graph-based
B8 Electrochemistry ~12 Medium ✅ No definitions

B2: Ionic Equilibrium — Acid-Base Titration ⭐ HIGH PRIORITY

From Victoria:

Must-Do:

  • Draw titration graph (like Tutorial 3 Q4)
  • Heavy calculations on weak acid/base

Memorize Chemical Formulas: They may only give names. Know these cold:

Name Formula Type
Pyridine C5H5N Weak base
Ammonia NH3 Weak base
Acetic acid CH3COOH Weak acid
Benzoic acid C6H5COOH Weak acid

Definitions Expected (High Probability):

  • Arrhenius acid/base
  • Brønsted-Lowry acid/base
  • Lewis acid/base

Also Study:

  • Buffer solutions (Henderson-Hasselbalch equation)
  • Salt hydrolysis
  • Common ion effect

Reference: PYP 24/25 Q12

B3: Phase Equilibrium ⭐ STRONGEST PICK

From Dnesha (academic clinic):

Primary Focus:

  1. Ideal solution
  2. Raoult's Law (P = x·P°)
  3. Dalton's Law (P_total = ΣP_i)
  4. Colligative properties
  5. All formulas

Graph Requirements (CRITICAL):

Element Requirement
Axis Correct labels (x-axis: mole fraction, y-axis: vapor pressure/temperature)
Shape Extremely important — know ideal vs non-ideal curves
Labels Know which component has higher/lower vapor pressure

Raoult's Law Plot Checklist:

  • [ ] Linear for ideal solutions
  • [ ] Positive/negative deviation identification
  • [ ] Azeotrope point marked (if applicable)
  • [ ] Component A vs Component B vapor pressures labeled

Reference: PYP 24/25 Q13, PYP 22/23 Q11

B4 & B5: Organic Chemistry + Stereochemistry

Combined Topics Pattern:

Combination PYP Reference Style
Alcohol + Stereochem PYP 24/25 Q15, PYP 22/23 Q14 Mechanism + stereochemistry
Carboxylic Acid + Stereochem PYP 22/23 Q15 Puzzle-type
Polymer + Stereochem PYP 23/24 Q14 Reaction + stereochemistry
Carbonyl + Amines + Amino PYP 23/24 Q15 Multi-topic synthesis

Sir Farhan's Topics (Carboxylic Acid): From Dnesha:

  • Questions like Tutorial 9, Question 2
  • "Puzzle-type" (teka-teki) questions
  • Sir won't give many hints
  • Must remember all reaction mechanisms

Brady's Reagent: From Anthonny:

  • Focus on Brady's reagent only for ammonia derivatives

B6: Amino Acid + Polymer

From Dr Syazreen:

  • Definitions for amine and/or amino acid expected

Key Definitions:

  • Amine (primary, secondary, tertiary)
  • Amino acid (zwitterion structure)
  • Peptide bond formation
  • Polymer types (addition vs condensation)

B7: Kinetic Chemistry

From Victoria:

Graph-based question format:

  • Straight line with k as gradient and t as x-axis
  • Y-axis depends on reaction order:
Order Y-axis Plot Shape
Zero [A] vs t Linear negative slope
First ln[A] vs t Linear negative slope
Second 1/[A] vs t Linear positive slope

Key Formulas:

  • Zero: [A] = [A]₀ - kt
  • First: ln[A] = ln[A]₀ - kt
  • Second: 1/[A] = 1/[A]₀ + kt
  • Half-life: t₁/₂ = ln(2)/k (first order only)

B8: Electrochemistry

From Victoria:

  • No definitions expected
  • Overpotential — most likely topic
  • Can ask about:
    • Nernst equation
    • Galvanic vs Electrolytic cells
    • Standard reduction potentials

4. Solubility Product (Cross-Topic)

From Dnesha:

Section Question Type
A Simple Ksp calculation
B Integrated with ionic equilibria
Both Precipitate formation: Q > Ksp

Key Formula:

  • Q (reaction quotient) vs Ksp comparison
  • If Q > Ksp: precipitate forms
  • If Q < Ksp: no precipitate
  • If Q = Ksp: saturated solution

5. Answer Selection Strategy

Recommended Question Selection

Always Answer:

  1. B3 (Phase Equilibrium) — most predictable, formula-based
  2. B6 (Amino Acid + Polymer) — definition-heavy but straightforward
  3. B8 (Electrochemistry) — calculations only, no definitions

Choose 1 More From:

  • B2 (Ionic Equilibrium) — if comfortable with titration graphs
  • B7 (Kinetics) — if good at graph interpretation
  • B4 (Alcohol + Stereochem) — if organic chemistry is a strength

Avoid Unless Confident:

  • B5 (Carboxylic Acid + Stereochem) — puzzle-type, few hints given

6. Quick Reference — Must-Know Formulas

Thermochemistry

Formula Application
ΔH = ΣΔHf(products) - ΣΔHf(reactants) Hess's Law
q = mcΔT Calorimetry
ΔG = ΔH - TΔS Gibbs free energy
ΔG° = -RT ln K Equilibrium connection

Ionic Equilibria

Formula Application
pH = -log[H+] Acid strength
pOH = -log[OH-] Base strength
pH + pOH = 14 Water autoionization
Ka × Kb = Kw Conjugate pairs
pH = pKa + log([A-]/[HA]) Henderson-Hasselbalch

Phase Equilibria

Formula Application
P = x·P° Raoult's Law
P_total = P_A + P_B Dalton's Law
ΔTb = i·Kb·m Boiling point elevation
ΔTf = i·Kf·m Freezing point depression
π = iMRT Osmotic pressure

Electrochemistry

Formula Application
E°cell = E°cathode - E°anode Cell potential
ΔG° = -nFE° Gibbs from potential
E = E° - (RT/nF) ln Q Nernst equation
1 mol e- = 96485 C Faraday's constant

Chemical Kinetics

Formula Application
Rate = k[A]ⁿ Rate law
t₁/₂ = ln(2)/k Half-life (first order)
k = A·e^(-Ea/RT) Arrhenius equation
1/[A] = 1/[A]₀ + kt Second order integrated

Solubility Product

Formula Application
Ksp = [cation]^m[anion]^n Solubility product
Q = [initial cation]^m[initial anion]^n Reaction quotient
Compare Q vs Ksp Precipitation prediction

7. Past Year Questions to Review

PYP Question Topics Priority
22/23 Q7 Thermochemistry definitions ⭐⭐⭐
22/23 Q10 Chemical Equilibrium ⭐⭐
22/23 Q11 Phase Equilibrium ⭐⭐⭐
22/23 Q14 Alcohol + Stereochem + Polymer ⭐⭐
22/23 Q15 Carbonyl + Carboxylic + Stereochem ⭐⭐
23/24 Q14 Alcohol + Stereochem + Polymer ⭐⭐
23/24 Q15 Carbonyl + Amines + Amino ⭐⭐
24/25 Q12 Ionic Equilibrium (titration) ⭐⭐⭐
24/25 Q13 Phase Equilibrium ⭐⭐⭐
24/25 Q15 Alcohol + Stereochem ⭐⭐

8. Tutorial References

Tutorial Question Topic Priority
Tuto 3 Q4 Acid-base titration graph ⭐⭐⭐
Tuto 9 Q2 Carboxylic acid (puzzle-type) ⭐⭐

9. Definitions Checklist

Must Memorize (High Probability)

  • [ ] Enthalpy of formation (standard vs non-standard wording)
  • [ ] Enthalpy of combustion
  • [ ] Hess's Law
  • [ ] Arrhenius acid/base
  • [ ] Brønsted-Lowry acid/base
  • [ ] Lewis acid/base
  • [ ] Amine (primary, secondary, tertiary)
  • [ ] Amino acid
  • [ ] Buffer solution

Know But Lower Priority

  • [ ] Raoult's Law
  • [ ] Dalton's Law
  • [ ] Ideal solution
  • [ ] Activation energy
  • [ ] Catalyst
  • [ ] Overpotential

No Definitions Expected

  • [ ] Electrochemistry (confirmed by multiple sources)

10. Pre-Exam Checklist

Physical Chemistry

  • [ ] Thermochemistry definitions — standard vs non-standard wording
  • [ ] Calorimetry calculations (q = mcΔT)
  • [ ] Hess's Law problems
  • [ ] Acid-base titration graph drawing
  • [ ] Weak acid/base pH calculations
  • [ ] Buffer pH calculations (Henderson-Hasselbalch)
  • [ ] Phase equilibrium graph drawing (axis, shape, labels)
  • [ ] Raoult's Law calculations
  • [ ] Colligative properties formulas
  • [ ] Kinetics graph interpretation (order from linear plots)
  • [ ] Half-life calculations
  • [ ] Solubility product (Q vs Ksp)
  • [ ] Nernst equation
  • [ ] Cell potential calculations

Organic Chemistry

  • [ ] Alcohol reactions and mechanisms
  • [ ] Carbonyl reactions and mechanisms
  • [ ] Phenol acidity and reactions
  • [ ] Amine basicity and reactions
  • [ ] Carboxylic acid reactions (Tutorial 9 style)
  • [ ] Stereochemistry (R/S, E/Z configuration)
  • [ ] Amino acid structures (zwitterion)
  • [ ] Polymer types and formation
  • [ ] Brady's reagent
  • [ ] Combined organic + stereochemistry problems

Graph Skills

  • [ ] Titration curves (weak acid-strong base, weak base-strong acid)
  • [ ] Phase equilibrium diagrams (vapor pressure vs composition)
  • [ ] Kinetics linear plots ([A] vs t, ln[A] vs t, 1/[A] vs t)

[!tip] Key Success Factors

  1. Exact wording matters — especially for thermochemistry definitions
  2. Memorize formulas — pyridine = C5H5N, common weak acids/bases
  3. Practice graph drawing — axis labels, shapes, component identification
  4. Know mechanisms cold — Sir Farhan doesn't give hints
  5. PYP practice — Questions repeat with variations

11. Study Guide — What to Read & What to Master

Section A Topics — Priority Lectures

A6: Thermochemistry (CRITICAL — Definition Traps)

Read: FAD1018 W15 — Thermochemistry

Must Master:

  • Definition of enthalpy of formation (with vs without standard conditions)
  • All enthalpy types: ΔH°f, ΔH°c, ΔH°neut, ΔH°vap, ΔH°fus, ΔH°sub
  • Hess's Law calculations: ΔH°rxn = ΣΔH°f(products) - ΣΔH°f(reactants)
  • Calorimetry: q = mcΔT (constant pressure), qv = CvΔT (constant volume)
  • Bond enthalpy: ΔH = Σ(bonds broken) - Σ(bonds formed)
  • Born-Haber cycles for lattice energy
  • Gibbs free energy: ΔG = ΔH - TΔS and spontaneity criteria

Key Distinction (Exam Trap):

Question Wording Include in Answer
"Enthalpy of formation" Definition only
"Enthalpy of formation under standard condition" Definition + 25°C, 1 atm

Practice: PYP 22/23 Q7

A5: Ionic Equilibrium

Read: FAD1018 W2-W3 — Ionic Equilibria, FAD1018 W3 — Buffer Solutions

Must Master:

  • Three acid-base theories: Arrhenius, Brønsted-Lowry, Lewis (definitions)
  • Conjugate acid-base pairs identification
  • Ka and Kb calculations: Ka × Kb = Kw = 1.0 × 10⁻¹⁴
  • pH calculations for weak acids/bases
  • Salt hydrolysis: acidic salts (NH₄Cl), basic salts (CH₃COONa), neutral salts (NaCl)
  • Buffer solutions: Henderson-Hasselbalch equation
    • Acidic: pH = pKa + log([A⁻]/[HA])
    • Basic: pOH = pKb + log([BH⁺]/[B])

Memorize Common Values:

Acid/Base Ka/Kb
CH₃COOH 1.8 × 10⁻⁵
NH₃ 1.8 × 10⁻⁵
C₆H₅COOH 6.5 × 10⁻⁵
HCN 4.9 × 10⁻¹⁰

A7: Kinetic Chemistry

Read: FAD1018 W16 — Kinetic Chemistry

Must Master:

  • Rate law: Rate = k[A]ᵐ[B]ⁿ (order ≠ stoichiometric coefficient)
  • Integrated rate equations and linear plots:
    • Zero order: [A] vs t (slope = −k)
    • First order: ln[A] vs t (slope = −k)
    • Second order: 1/[A] vs t (slope = +k)
  • Half-life formulas:
    • Zero: t₁/₂ = [A]₀/2k (decreases over time)
    • First: t₁/₂ = ln(2)/k = 0.693/k (constant)
    • Second: t₁/₂ = 1/k[A]₀ (increases over time)
  • Units of k: M^(1−n) s⁻¹
  • Arrhenius equation: k = Ae^(−Ea/RT), ln k = ln A − Ea/RT
  • Collision theory: effective collisions require proper orientation and E ≥ Ea
  • Energy profile diagrams: activation energy, activated complex, ΔH

Exam Focus: Graph interpretation — given a linear plot, identify reaction order

A8: Electrochemistry

Read: FAD1018 L1-L2 — Electrochemistry, FAD1018 L4-L5 — Electrolytic Cell

Must Master:

  • No definitions expected (confirmed by leaks)
  • Cell notation: Anode | Anode electrolyte || Cathode electrolyte | Cathode
  • E°cell = E°cathode − E°anode
  • Nernst equation: E = E° − (RT/nF) ln Q
  • Overpotential concept (most likely topic per leaks)
  • Galvanic vs electrolytic cells
  • Standard reduction potentials

Section B Topics — Priority Lectures

B2: Ionic Equilibrium — Acid-Base Titration ⭐

Read: FAD1018 W3 (3) — Ionic Equilibria Part 5-6 — Acid-Base Titrations

Must Master:

  • Titration curve drawing for all three types:
    1. Strong acid – Strong base (pH = 7 at equivalence)
    2. Weak acid – Strong base (pH > 7 at equivalence)
    3. Weak base – Strong acid (pH < 7 at equivalence)
  • Half-equivalence point: pH = pKa
  • Indicator selection based on pH range
  • Stoichiometry calculations at all four stages:
    1. Initial
    2. Before equivalence (buffer region)
    3. At equivalence
    4. After equivalence

Memorize Chemical Formulas:

Name Formula
Pyridine C₅H₅N
Ammonia NH₃
Acetic acid CH₃COOH
Benzoic acid C₆H₅COOH

Practice: Tutorial 3 Q4

B3: Phase Equilibrium ⭐⭐⭐ (Strongest Pick)

Read: FAD1018 W5-W6 — Phase Equilibria

Must Master:

  • Raoult's Law: P = x₁P₁° + x₂P₂° (ideal solutions)
  • Dalton's Law: P_total = P_A + P_B
  • Colligative properties:
    • ΔTb = iKbm (boiling point elevation)
    • ΔTf = iKfm (freezing point depression)
    • π = iMRT (osmotic pressure)
  • Phase diagrams:
    • Ideal solution: linear vapor pressure curve
    • Positive deviation: minimum boiling azeotrope
    • Negative deviation: maximum boiling azeotrope
  • Graph requirements: axis labels, shape, component identification

Practice: PYP 24/25 Q13, PYP 22/23 Q11

B7: Kinetic Chemistry (Graph-Based)

Read: FAD1018 W16 — Kinetic Chemistry (pages on integrated rate laws)

Must Master:

  • Given concentration vs time graph, determine order from linearity:
    • [A ] vs t linear → Zero order
    • ln[A] vs t linear → First order
    • 1/[A] vs t linear → Second order
  • Calculate k from slope
  • Predict concentration at given time using integrated rate equations

Organic Chemistry (A1-A4, B4-B6)

Alcohol (A1, B4): Read: FAD1018 W7 — Alcohol and Phenol

Must Master:

  • Classification: 1°, 2°, 3° alcohols
  • Lucas test: differentiates 1°/2°/3° (3° fastest)
  • Oxidation: 1° → aldehyde → carboxylic acid; 2° → ketone; 3° resistant
  • Iodoform test: positive for CH₃CH(OH)− and CH₃CO− compounds
  • Dehydration to alkenes (E1 mechanism, Zaitsev's rule)

Amine & Amino Acids (A4, B6): Read: FAD1018 W12 — Amine & Amino Acids

Must Master:

  • Definitions of amine (primary, secondary, tertiary)
  • Definition of amino acid (zwitterion structure)
  • Basicity of amines vs ammonia
  • Peptide bond formation

Carboxylic Acids (B5): Read: FAD1018 W11 — Carboxylic Acids & Derivatives

Must Master:

  • Acidity: electron-withdrawing groups increase acidity
  • Reactions with alcohols (esterification)
  • Acid chloride formation and reactions
  • Puzzle-type problems (Tutorial 9 Q2 style)

Stereochemistry (Combined with Organic): Read: FAD1018 W6 — Stereochemistry

Must Master:

  • R/S configuration (Cahn-Ingold-Prelog rules)
  • E/Z configuration for alkenes
  • Enantiomers vs diastereomers
  • Optical activity

Solubility Product (Cross-Topic)

Read: FAD1018 W4 — Solubility Product

Must Master:

  • Ksp expressions
  • Q vs Ksp comparison for precipitation prediction
  • Common ion effect
  • Selective precipitation

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