AS & A Level Chemistry (9701) — May–June 2023, Paper 35
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 12 marks · Practical skills (gas collection over water, recording quantitative data)
Magnesium is a reactive metal which corrodes when left in air. Magnesium reacts with acid to release hydrogen. You will determine the percentage purity of a sample of magnesium by…
Answer this question and get it marked →Question 2 · 12 marks · Practical skills (thermometric measurements, recording quantitative data)
In Question 1 you determined the percentage purity of a sample of magnesium by measuring the volume of gas produced when it reacts with an acid. In Question 2 you will use the…
Answer this question and get it marked →Question 3 · 16 marks · Qualitative analysis (tests for magnesium and carbonate ions)
Devise and carry out tests to determine whether FA 5 is magnesium carbonate. Record your tests, observations and conclusions.
Answer this question and get it marked →