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f321

ocr chemistry may 2013 f321

Webster Bahringer

droxide than chloroethane. Include in your answer the factors affecting the rate of nucleophilic substitution. Answer Explanation: The rate of nucleophilic substitution in halogenoalkanes depends on the strength of the carbo

ocr chemistry f321 june 2013 mark scheme

Ms. Jedediah Rath

interpret experimental data, such as titration curves, spectra, or reaction kinetics graphs. The mark scheme emphasizes: Correct plotting and labeling of graphs. Accurate reading of data points. Logical interpretation linking data to chemical principles. Example: When analyzing an IR spectrum, st

may 2013 ocr chemistry f321 mark scheme

Dwayne Pfannerstill-Heathcote

t than asked. The mark scheme clarifies question requirements, ensuring responses are targeted. Calculation errors: Incorrect algebra or unit conversion mistakes are common. The scheme awards partial marks for correct methods, even if the final answer is wrong.