18 gram of Water is mixed in 200 grams of oleum containing 80% free SO3.
What is the new labelling of Oleum?
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Oleum is mixture of H2SO4 and SO3. Labelling of oleum is done for 100 gm sample. For eg. 109% oleum means 100g is the sample and 9g is the water required by sample to completely combine SO3 in the sample.Answer:
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