Q 4 Please D4. Besides caffeine, what else is extracted into the tea? Why can you use the basic salt, Na₂CO3,sodium carbonate, to remove this material?5. What criterion is used for the purity of a sample of caffeine?

Answered: 4. Besides caffeine, what else is…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 105QRT: Apatite, Ca5(PO4)3OH, is the mineral in teeth. On a chemical basis explain why drinking milk...

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Q 4 Please

D
4. Besides caffeine, what else is extracted into the tea? Why can you use the basic salt, Na₂CO3,
sodium carbonate, to remove this material?
5. What criterion is used for the purity of a sample of caffeine?

Expert Solution

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Tea is made up of a complex mixture of chemical compounds, including polyphenols, amino acids, and caffeine. One group of polyphenols that is particularly abundant in tea is tannins. Tannins are responsible for the astringent taste of tea and can contribute to its brown color

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