Oleum or fuming sulfuric acid availble commerically in, Ask an Expert

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Oleum or fuming sulfuric acid availble commerically in concentrations ranging from 20 to 99% sulfur trioxide. 1. What is the percentage by mass of sulfer trioxide (SO3) if Oleum is expressed as 3H2SO4 . 5SO3? Show your solution. 2. Discuss at least three potentially hazardous features associated with concentrated sulfuric acid.

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