A student investigated the electrolysis of dilute sodium sulfate solution. They measured the volumes of hydrogen gas and oxygen gas collected over a period of 12 minutes.
Their results are shown in the table below.
| Time (minutes) | Volume of hydrogen produced (cm3\text{cm}^3cm3) | Volume of oxygen produced (cm3\text{cm}^3cm3) |
|---|---|---|
| 0 | 0.0 | 0.0 |
| 3 | 5.0 | 2.5 |
| 6 | 10.0 | 5.0 |
| 9 | 15.0 | 7.5 |
| 12 | 20.0 | 10.0 |
Describe, using the data in the table, what the results show about the volumes of hydrogen and oxygen produced during this experiment.
Practise Edexcel GCSE Chemistry Electrolytic processes with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) 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.