AS & A Level Chemistry (9701) — May–June 2023, Paper 34
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 14 marks · Practical skills (thermometric measurements, recording quantitative data)
You will investigate the enthalpy change of neutralisation, ΔHneut, between aqueous sodium hydroxide of known concentration and a dilute organic acid. You will use your results to…
Answer this question and get it marked →Question 2 · 11 marks · Practical skills (gravimetric analysis, recording quantitative data)
A gravimetric procedure can identify the metal in many metal carbonates. You will decompose a metal carbonate, MCO₃, by heating to produce the metal oxide and carbon dioxide. You…
Answer this question and get it marked →Question 3 · 15 marks · Qualitative analysis (tests distinguishing acids)
Half fill the 250 cm³ beaker with water and place it on a gauze on the tripod. Heat the water until boiling then switch off your Bunsen burner; this will be your hot water bath.…
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