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Yes, BUT... Liquid SO3 is HIGHLY reactive and not readily available. Pure SO3 reacts readily (and violently) with water or sulfuric acid. To manufacture sulfuric acid, dilute gaseous SO3 is absorbed in sulfuric acid to increase the concentration of the acid. 100% sulfuric acid can still absorb more SO3. When extra SO3 is dissolved in 100% H2SO4 (sulfuric acid) the solution is called oleum or fuming sulfuric acid. In general, oleum is used when free SO3 is required.

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15y ago
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11y ago

70 ml h2so4 kept in 100ml volumetric flask and add water till mark of voluetric flask.

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14y ago

Add more SO3 gas till saturation.

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Q: Can ninety two percent sulfuric acid prepared by adding liquid SO3 to eighty four percent sulfuric acid?
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