What will be the % labelling of oleum containing 40% SO_(3) by mass ? – InterviewSolution

1.	What will be the % labelling of oleum containing 40% SO_(3) by mass ?
Answer» 109 118 113.5 122.5 Solution :40% by MASS `SO_(3)` 40 gm `SO_(3)` in 100 gm OLEUM Hence 109% labelled oleum

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