O-LevelChemistryRates of Reaction5070/11 · May/June 2019 · Q11 Mark
An experiment is done to measure the rate of reaction between calcium carbonate and dilute hydrochloric acid. The gas formed is collected in a gas syringe. Which additional pieces of apparatus are essential to measure how the rate of the reaction changes with temperature and the amount of acid used?
Aapparatus to measure temperature: balance, apparatus to measure amount of acid used: thermometer
Bapparatus to measure temperature: measuring cylinder, apparatus to measure amount of acid used: balance
Capparatus to measure temperature: thermometer, apparatus to measure amount of acid used: condenser
Dapparatus to measure temperature: thermometer, apparatus to measure amount of acid used: measuring cylinder
✓ Correct answer
D: apparatus to measure temperature: thermometer, apparatus to measure amount of acid used: measuring cylinder
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