Question

Percentage of free so3so3 in an oleum bottle labelled 113.5% h2so4h2so4 is :

Answer 1

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$<b>$A sample of Oleum is labelled 118% . The percentage of free SO 3 in the sample is .

Percentage of Free SO3 in the sample of Oleum labelled as 109% would be 40%.

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