AS & A Level Chemistry (9701) — October–November 2024, Paper 35
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 12 marks · Practical skills (quantitative analysis: thermometric titration)
The neutralisation of an acid by an alkali is an exothermic reaction. The concentration of an acid can be found by measuring the temperature change when the acid reacts with an…
Answer this question and get it marked →Question 2 · 14 marks · Practical skills (quantitative analysis: mass loss method)
Acids react with carbonates to produce carbon dioxide gas: Na₂CO₃(s) + H₂SO₄(aq) → Na₂SO₄(aq) + CO₂(g) + H₂O(l). This reaction can be used to determine the concentration of acid,…
Answer this question and get it marked →Question 3 · 14 marks · Practical skills (qualitative analysis: thermal decomposition)
FA 4, FA 5 and FA 6 are compounds of the same metal in different oxidation states. Place a small spatula measure of FA 4 in a hard-glass test-tube. Heat the tube gently at first…
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