AS & A Level Chemistry (9701) — October–November 2024, Paper 36
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 11 marks · Practical skills: quantitative analysis (gas collection)
Sodium carbonate reacts with hydrochloric acid to release carbon dioxide as shown. Na2CO3(s) + 2HCl(aq) - 2NaCl(aq) + CO2(g) + H2O(l) You will find the percentage purity in a…
Answer this question and get it marked →Question 2 · 13 marks · Practical skills: quantitative analysis (thermal decomposition)
Many metal carbonates, such as magnesium carbonate, decompose to form the metal oxide when heated. MgCO3(s) - MgO(s) + CO2(g) Other metal carbonates, such as sodium carbonate,…
Answer this question and get it marked →Question 3 · 16 marks · Practical skills: qualitative analysis (effect of heat on salts)
FB 4 is a mixture of two salts that each contain one cation and one anion. All the ions present are in the Qualitative analysis notes. (a) Place a small spatula measure of FB 4…
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