During the electrolysis of a dilute aqueous solution of sodium hydroxide, hydrogen gas is liberated at the negative cathode and oxygen gas is liberated at the positive anode.
The volume of oxygen gas produced plotted against the volume of hydrogen gas produced under the same temperature and pressure conditions is shown in the graph below:
Use the graph to answer the following:
State the quantitative relationship between the volume of oxygen produced and the volume of hydrogen produced.
Determine the volume of oxygen produced when the volume of hydrogen produced is 13.6 cm313.6\text{ cm}^313.6 cm3.
Electrolysis Questions
Practise AQA GCSE Chemistry Electrolysis with exam-style questions for Foundation and Higher tier. 23 questions covering The process of electrolysis, Electrolysis of molten ionic compounds, Using electrolysis to extract metals, Electrolysis of aqueous solutions, and Representation of reactions at electrodes as half equations (HT only), matched to the AQA GCSE Chemistry (8462) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.