AS & A Level Chemistry (9701) — October–November 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 · 19 marks · Advanced practical skills (rates of reaction; recording and processing quantitative data)
Iron(III) ions, Fe³⁺, can oxidise iodide ions, I⁻, to iodine, I₂: 2Fe³⁺(aq) + 2I⁻(aq) → 2Fe²⁺(aq) + I₂(aq). The rate of this reaction can be determined by measuring the time to…
Answer this question and get it marked →Question 2 · 8 marks · Advanced practical skills (enthalpy measurement; recording quantitative data)
In this experiment you will determine the relative formula mass of an unknown ion, A²⁻, present in a salt with the formula Na₂A•5H₂O. You will first determine the enthalpy change…
Answer this question and get it marked →Question 3 · 13 marks · Qualitative analysis (thermal decomposition; reactions of carbonates)
FB 6 is a salt which contains a cation and an anion from those listed in the Qualitative analysis notes. FB 7 is a mixture of two acids; the possible acids are hydrochloric acid,…
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