SPM Chemistry Calculations (KSSM 4541)
Every SPM Chemistry calculation, with the formula and worked examples.
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These are the calculations examined in SPM Chemistry (code 4541). Each page gives the formula, the units, three worked examples from easy to SPM level, and the common traps.
Form 4
- Relative atomic mass
- Relative molecular mass
- Number of moles from mass
- Number of moles from particles
- Number of moles from gas volume
- Molar mass
- Molarity and concentration
- Converting g dm-3 and mol dm-3
- Dilution of solutions
- Preparing a standard solution
- Empirical formula
- Molecular formula
- Percentage composition by mass
- Mole ratio from equations
- Mass of product or reactant
- Volume of gas in a reaction
- Limiting reactant
- Percentage yield
- Titration calculation
- Average rate of reaction
- Rate from a graph gradient
Form 5
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Source: DSKP KSSM Chemistry Form 4 and 5 (English version), Format Pentaksiran Sijil Pelajaran Malaysia mulai 2021, Kimia (4541)
Written by the spmchemistry.com.my editorial teamUpdated: 4 September 2026