During the electrolysis of dilute sulfuric acid, hydrogen gas is produced at the negative cathode and oxygen gas is produced at the positive anode.
The relationship between the volume of hydrogen gas and the volume of oxygen gas produced is shown in the graph below:
Use the graph to answer the following:
a.[1]
State the quantitative relationship between the volume of oxygen produced and the volume of hydrogen produced.
b.[1]
Determine the volume of oxygen produced when the volume of hydrogen produced is 7.8 cm37.8\text{ cm}^37.8 cm3.