The $pK_a$ of acetylsalicylic acid (aspirin) is $3.5$. The $pH$ of gastric juice in the human stomach is about $2-3$ and the $pH$ in the small intestine is about $8$. Aspirin will be
- AUnionized in the small intestine and in the stomach
- BCompletely ionized in the small intestine and in the stomach
- CIonized in the stomach and almost unionized in the small intestine
- DIonized in the small intestine and almost unionized in the stomach
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