What will be the % labelling of oleum containing `40% SO_(3)` by mass ?
What will be the % labelling of oleum containing `40% SO_(3)` by mass ?
A. 109
B. 118
C. 113.5
D. 122.5
5 views
1 Answers
Correct Answer - A
40% by mass `SO_(3)`
40 gm `SO_(3)` in 100 gm Oleum
Hence 109% labelled oleum
5 views
Answered