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A 1% solution of H(2)O(2) is provided to...

A 1% solution of `H_(2)O_(2)` is provided to you. What steps do you take to prepare pure `H_(2)O_(2)` from it?

Text Solution

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To obtain pure `H_(2)O_(2)` from the provided 1% `H_(2)O_(2)` the following steps are involved.
Step - I :
`to` The provided 1% `H_(2)O_(2)` solution is carefully evoparated on a water bath under reduced pressure by distillation.
Here approximately 30% `H_(2)O_(2)` solution is obtained.
Step - II :
The obtained solution in the above step is heated in a distillation flask at a low pressure of 15mm. Here approximately 85% `H_(2)O_(2)`, solution is obtained.
Step - III :
The above sample (obtained in the step - II) crystallised by freezing and pure `H_(2)O_(2)` is obtained `(=100%)`.
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