Chemistry 9CH0/03 November 2021 | Edexcel A Level Past Papers With Mark Scheme

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1. Mass spectrometry of chlorine isotopes – Interpreting relative isotopic abundances and predicting peaks in Cl₂⁺ mass spectra.

2. Thermal decomposition of carbonates – Investigating enthalpy changes in Group 2 carbonate decomposition using Hess’s Law.

3. Synthesis and purification of organic compounds – Experimental methods for preparing and recrystallizing paracetamol to obtain high purity.

4. Identifying unknown inorganic salts – Conducting qualitative analysis using precipitation and flame tests to determine cation and anion composition.

5. Reaction mechanisms in organic chemistry – Drawing nucleophilic addition mechanisms, including reactions of aldehydes and ketones with hydrogen cyanide.

6. Chirality and racemic mixtures – Understanding the formation of racemic products in asymmetric synthesis due to planar carbonyl intermediates.

Edexcel A Level Chemistry (9CH0) Nov 2021

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Chemistry 9CH0/03 November 2021 | Edexcel A Level Past Papers With Mark Scheme

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