The pK a of acetylsalicylic acid (aspirin) is 3.5 . The pH of gastric juice in human…
Chemistry · JEE Advanced · NTA Exams — Equilibrium
The pKa of acetylsalicylic acid (aspirin) is 3.5 . The pH of gastric juice in human stomach is about 2-3 and the pH in the small intestine is about 8. Aspirin will be :
- unionised in the small intestine and in the stomach
- completely ionized in the small intestine and in the stomach
- ionised in the stomach and almost unionised in the small intestine
- ionised in the small intestine and almost unionised in the stomach
Answer
(D) ionised in the small intestine and almost unionised in the stomach
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