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The weight of 1 L of ozonised oxygen at ...

The weight of `1 L` of ozonised oxygen at `STP` was found to be `1.5 g`. When `100 mL` of this mixture at `STP` was treated with turpentine oil, the volume was reduced to `90 mL`. The molecular weight of ozone is

Text Solution

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Volume absorbed by turpentive oil`=10mL`
`=` volume of `O_(3)`
Volume of `O_(2)=100-10=90mL`
Mw of ozonised oxygen`=(WeightxxRT)/(PV)`
`=(1.5xx0.0821xxRT)/(1xx1)=33.62`
Volume of mol ratio of `O_(2)` and `O_(3)` `=900:100`
Mw of ozonised oxygen`=(900xx32+100xxa)/(1000)`
`33.62=(900xx32+100xxa)/(1000)`
or `a=48.2`
Mw of `O_(3)=48.2`
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