Describe the preparation of sulphur (VI) oxide from concentrated sulphuric (VI) acid.

Describe the preparation of sulphur (VI) oxide from concentrated sulphuric (VI) acid.

Answers

Procedure
- Copper turnings are covered with concentrated sulphuric (VI) acid and the mixture heated (a must in this case).
Note:
- Dilute sulphuric (VI) acid does not react with copper hence the need for concentrated acid.
- Cold concentrated sulphuric (VI) acid does not also react with copper hence warming.

Observation.
- When the solution becomes hot, there is evolution of sulphur (IV) oxide gas.

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Kavungya answered the question on April 29, 2019 at 13:40

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