Mole Concept and Some Basic Concepts of ChemistrymediumSUBJECTIVE

Calculate the mass of water (in grams) required to be added to of oleum to convert it completely intMole Concept and Some Basic Concepts of Chemistry Chemistry Question

Question

Calculate the mass of water (in grams) required to be added to $100 \text{ g}$ of $118\%$ oleum to convert it completely into $100\% \text{ H}_2\text{SO}_4$.

Answer: $18 \TEXT{ G}$

💡 Solution & Explanation

By definition, the percentage labeling $100+x$ indicates $x$ grams of water are needed per $100 \text{ g}$ oleum. Since labeling is $118\%$, $x = 18$.

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