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May 25, 2015

Homework Help: chemistry

Posted by Diana on Friday, April 8, 2011 at 6:33pm.

Oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9% sulfur trioxide.

What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3?

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