Figure 11 shows the apparatus that can be used to electrolyse sodium sulfate solution using inert electrodes - Edexcel - GCSE Chemistry - Question 8 - 2020 - Paper 1
Question 8
Figure 11 shows the apparatus that can be used to electrolyse sodium sulfate solution using inert electrodes.
(a) Hydrogen is produced at the negative electrode dur... show full transcript
Worked Solution & Example Answer:Figure 11 shows the apparatus that can be used to electrolyse sodium sulfate solution using inert electrodes - Edexcel - GCSE Chemistry - Question 8 - 2020 - Paper 1
Step 1
Describe the test to show the gas is hydrogen.
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Answer
To test for hydrogen gas, an ignited splint should be applied to the gas. If hydrogen is present, it will produce a characteristic 'pop' sound, indicating that the gas has ignited.
Step 2
What is the name of gas X that forms at the positive electrode?
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Answer
B oxygen
Step 3
State what is meant by the term electrolysis.
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Answer
Electrolysis is a chemical process that uses electricity to induce a chemical reaction, typically to separate compounds into their individual components. In the case of sodium sulfate solution, it involves the breakdown of the solution into sodium ions and sulfate ions.
