• Types: empirical, molecular, structural (full/condensed), stereochemical, skeletal
• 3D models
• Interconvert molecular, structural, and skeletal formulas
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Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
2
Learning objective
3.2.2—Functional groups
New
• Give characteristic properties
• Groups: halogeno, hydroxyl, carbonyl, carboxyl, alkoxy, amino, amido, ester, phenyl
• Identify functional groups by name and structure
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Mastery
0
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Mistakes
Start with the concept explanation, then practise to create mastery evidence.
3
Learning objective
3.2.3—Homologous series
New
• Successive members differ by CH₂
• Series: alkanes, alkenes, alkynes, halogenoalkanes, alcohols, aldehydes, ketones, carboxylic acids, ethers, amines, amides, esters
• Recognize general formulas and functional group patterns
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Mastery
0
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0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
4
Learning objective
3.2.4—Physical property trends
New
• Melting and boiling points in homologous series
• Explain trends using chain length, branching, polarity, and IMF
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
5
Learning objective
3.2.5—IUPAC nomenclature
New
• Systematic naming for organic/inorganic compounds
• Up to 6 carbons, one functional group type
• Apply nomenclature to saturated or mono-unsaturated compounds with one functional group
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
6
Learning objective
3.2.6—Structural isomers
New
• Same molecular formula, different connectivities
• Types: branched, straight-chain, position, functional group isomers
• Include primary, secondary, and tertiary alcohols, halogenoalkanes, and amines
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
7
Learning objective
3.2.7 (HL)—Stereoisomers
New
• Same constitution, different spatial arrangements
• Cis-trans isomerism: non-cyclic alkenes, C₃-C₄ cycloalkanes
• Chiral carbon: non-superimposable mirror images (enantiomers)
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
8
Learning objective
3.2.8 (HL)—Mass spectrometry
New
• Fragmentation patterns reveal structural features
• Include molecular ion and use supplied fragment data
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
9
Learning objective
3.2.9 (HL)—Infrared spectroscopy
New
• Identify bond types from IR spectra
• Functional group region (wavenumber/cm⁻¹)
• Interpret characteristic absorptions using data booklet values
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
10
Learning objective
3.2.10 (HL)—¹H NMR spectroscopy
New
• Chemical environments of hydrogen atoms
• Information: number of signals, chemical shifts, integration
• Use chemical shift and integration data to deduce structures
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
11
Learning objective
3.2.11 (HL)—NMR splitting patterns
New
• Singlets, doublets, triplets, quartets
• Use splitting patterns to infer neighbouring hydrogen atoms
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.
12
Learning objective
3.2.12 (HL)—Combined data analysis
New
• Use multiple techniques for structure determination
0%
Mastery
0
Attempts
0
Mistakes
Start with the concept explanation, then practise to create mastery evidence.