What will be the % labelling of oleum co...

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

109

118

113.5

122.5

Text Solution

Verified by Experts

The correct Answer is:

40% by mass `SO_(3)`
40 gm `SO_(3)` in 100 gm Oleum
Hence 109% labelled oleum

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