A researcher needs a single solvent that will dissolve both acetylsalicylic acid…
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A researcher needs a single solvent that will dissolve both acetylsalicylic acid (aspirin) and caffeine for a UV–Vis assay. The solvent must also have a boiling point below 80∘C so it can be removed rapidly after analysis. Which solvent best satisfies these requirements?
(a) water (boiling point 100∘C)
(b) ethanol (boiling point 78∘C)
(c) diethyl ether (boiling point 34∘C)
(d) isopropanol (boiling point 82∘C)