AS & A Level Chemistry (9701) — May–June 2024, Paper 52
2 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 15 marks · Planning, Analysis and Evaluation - Hess's law / enthalpy determination
Calcium carbonate, CaCO3(s), decomposes when heated, as shown. CaCO3(s) - CaO(s) + CO2(g) The enthalpy change of reaction, delta-H r, for the thermal decomposition of CaCO3(s)…
Answer this question and get it marked →Question 2 · 15 marks · Planning, Analysis and Evaluation - preparing a standard solution by dilution
This question is about an experiment to investigate the effect of temperature on the equilibrium constant, K1, of the reaction shown. Fe3+(aq) + SCN-(aq) <= FeSCN2+(aq) The data…
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