Chemistry A (9-1) - Gateway Science Suite J248 9-1: Monitoring and controlling chemical reactions Topical Past Paper Questions
OCR GCSE (9-1) Chemistry A (9-1) - Gateway Science Suite J248 (9-1) past-paper questions on Monitoring and controlling chemical reactions, free. This topic is frequently examined across 6 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates the reaction between marble chips and dilute hydrochloric acid. The diagram shows their experiment. The student measures the volume of carbon dioxide gas collected in the measuring cylinder every 30 seconds. (a) (i) Suggest another piece of equipment that c…
Methanol, CH₃OH, is made in industry by reacting carbon monoxide with hydrogen. This is the equation for the reaction. CO(g) + 2H₂(g) ⇌ CH₃OH(g) The forward reaction is exothermic. (a) A temperature of 250°C and a pressure of 100 atmospheres is used for the reaction. (i) Describe…
A company makes hydrogen iodide, HI, gas by reacting hydrogen gas with iodine gas. Look at the equation for the reaction. (a) (i) What is the volume of hydrogen gas, in dm³, needed to react with 150dm³ iodine at room temperature and pressure? Use the balanced symbol equation to h…
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