Fill in the table for experiment 2 with the oxygen volumes shown in the diagrams.
Plot the data for both experiment 1 and experiment 2 on the grid, then draw a smooth curve through each collection of points.
After $75$ seconds, what volume of oxygen is produced in experiment 2?
The rate of reaction $= \frac{\text{volume of gas in cm}^3}{\text{time in seconds}}$. Find the rate of reaction for each experiment after $45$ seconds.
Use your responses from (d) to infer the role of copper(II) oxide in experiment 2. Explain your answer.
Why are the last two readings in the table for experiment 2 identical?
The reaction equation is $2\text{KClO}_3 \rightarrow 2\text{KCl} + 3\text{O}_2$. Using the table in (a), calculate the mass of potassium chlorate(V) used in the experiment.