Explain how you would measure the rate of a reaction using a gas syringe. What factors could affect your results?

To measure the rate of a reaction using a gas syringe, I would set up the reaction in a flask connected to the gas syringe. I would record the volume of gas produced at regular time intervals. Factors that could affect the results include temperature, concentration of reactants, and the presence of a catalyst. This answer is anchored to AS required practical activities.

To measure the rate of a reaction using a gas syringe, I would set up the reaction in a flask connected to the gas syringe. I would record the volume of gas produced at regular time intervals. Factors that could affect the results include temperature, concentration of reactants, and the presence of a catalyst. is the best answer because it directly supports the AQA A-Level Chemistry objective to required practical 3: investigate how rate changes with temperature. This reasoning is anchored to AS required practical activities in AS practical skills and required practical activities, and it separates required practical from similar A-Level ideas rather than relying on a vague recall statement. Other options are weaker if they use the wrong evidence, calculation, mechanism, observation, unit, or conclusion for this subtopic.