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Cambridge International AS & A Level Chemistry

Practical Exam Trainer

Work a real practical-paper question on a digital bench, and see exactly where each mark was earned or lost.

Paper 3 Advanced Practical Skills: 120 min · 40 marks

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Potassium manganate(VII) titration

Concentration of hydrogen peroxide by manganate(VII) titrationFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Iodine-thiosulfate titration

Concentration of iodine by thiosulfate titrationFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Back-titration and multi-stage dilution

Purity of a carbonate by dilution and back titrationFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Rate by a timed end point

Rate against temperature by a timed end-pointFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Continuous gas-volume rate

Initial rate from a gas-volume curveFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Thermometric enthalpy change and Hess cycles

Enthalpy changes and a Hess cycle for citric acidFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Concentration of hydrogen peroxide from a temperature riseFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Gravimetric heating to constant mass

Purity of sodium hydrogencarbonate by heatingFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Water of crystallisation of a hydrated salt

How much water is in hydrated magnesium sulfate?Free
Manipulating and measuring · Presenting data · Analysing and evaluating
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Solubility, precipitation and mass or yield

Percentage yield of an insoluble saltFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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Inorganic qualitative analysis, including heating solids

Identifying the ions in unknown solutions and solidsFree
Manipulating and measuring · Analysing and evaluating
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Manganese(IV) oxide, filtrates and ions the notes cannot nameFree
Manipulating and measuring · Analysing and evaluating
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Redox tests, and choosing tests for an anionFree
Manipulating and measuring · Analysing and evaluating
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Organic functional-group tests

Identifying three organic unknownsFree
Manipulating and measuring · Analysing and evaluating
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Unfamiliar-instruction transfer tasks

Relative atomic mass of magnesium from a supplied methodFree
Manipulating and measuring · Presenting data · Analysing and evaluating
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9701/31 Question 1
May/June 2025 · Paper 3 Advanced Practical Skills
10 marks · about 35 min
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9701/31 Question 2
May/June 2025 · Paper 3 Advanced Practical Skills
18 marks · about 50 min
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9701/31 Question 3
May/June 2025 · Paper 3 Advanced Practical Skills
12 marks · about 30 min
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9701/32 Question 1
May/June 2025 · Paper 3 Advanced Practical Skills
15 marks · about 45 min
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9701/32 Question 2
May/June 2025 · Paper 3 Advanced Practical Skills
12 marks · about 35 min
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9701/32 Question 3
May/June 2025 · Paper 3 Advanced Practical Skills
13 marks · about 35 min
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9701/33 Question 1
May/June 2025 · Paper 3 Advanced Practical Skills
14 marks · about 45 min
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9701/33 Question 2
May/June 2025 · Paper 3 Advanced Practical Skills
10 marks · about 30 min
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9701/33 Question 3
May/June 2025 · Paper 3 Advanced Practical Skills
16 marks · about 35 min
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