Incorrect responses tended to instead focus on reaction rates, often asserting (incorrectly) that the sulfonate group slows down the anhydride hydrolysis as in "The induction of the SO 3 K causes [the] slower decomposition". These responses may reflect the emphasis on problems involving reactivity in the introductory organic chemistry curriculum, especially early on. Structure-property effects on even simple macroscopic properties like solubility, while generally covered, are not typically the focus.