1) Which of the following can be used to measure the rate of a reaction? a) Mass of reactant used b) Quantity of reactant used/time c) Volume of reactant used – Volume of product formed  d) Amount of product formed 2) What units are used for measuring change in mass/time? a) Grams per second b) Grams per min c) Micrograms per sec d) Micrograms per minute 3) One way of measuring the rate of reaction is to draw a graph of the progress as it happens. What units are always plotted on the x axis? a) Amount of reactant (g) b) Volume of gas (cm3) c) Time (s)  d) Mass of product (grams) 4) To measure the volume of a gas formed in a reaction, when might you choose to use a gas syringe rather than a measuring cylinder? a) To measure an insoluble gas b) Measuring a toxic gas c) To measure a soluble gas d) When measuring a coloured gas 5) A student investigated the rate of a reaction by measuring the mass lost. The reactant weighed 6 g at the start of the reaction and 4.8 g at the end, and the reaction took 2 minutes 30 seconds to complete. What was the rate of the reaction? a) 0.04g/s b) 0.032g/s c) 0.008g/s d) 0.48g/s

Measuring rates of reaction

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