Calculate the mass of water (in grams) required to be added to of oleum to convert it completely int — Mole 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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