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Caffeine is 2.2 mg/mL soluble in water at 25⁰C, 180 mg/mL at 80⁰C, and 670 mg/mL at 100⁰C. At lower temperatures, caffeine is not very soluble in water. However, at higher temperatures, the bonds in caffeine allow it to dissolve in water. Before boiling the water, sodium carbonate was added. The sodium carbonate is a salt that essentially ... ................
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