The ${\mathrm{pK}}_{\mathrm{a}}$ of acetylsalicylrc acid (aspirin) is 3.5. The pH of gastric juice in human stomach is about 2-3 and the pH in the small intestine 1s about 8. Aspirin will be:

unionised in the small intestine and in the stomach

completely ionised in the small intestine and in the stomach

ionised in the stomach and almost unisoni.sed in the small intestine

ionised in the stomach and almost unionised in the small intestine