Ionic EquilibriumHard
Question
The pKa of acetylasliclic 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:
Options
A.Unionised in the small intestine and in the stomach
B.Completely ionised in the small intestine and in the stomach
C.Ionised in the stomach and almost unisonised in the small intestine
D.Ionised in the small intestine and almost unionized in the stomach
Solution
Aspirin a weak acid is unionised in acid medium due to common ion effect and completely ionised in alkaline medium.
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
Arsenic (III) sulphide form a sol with negative charge. Which of the following ionic substances will have lowest floceul...10 mL of 10-6 M HCI solution is mixed with 90 mL H2O. pH will change approximately:...The solubility of PbF2 in water at 25oC is ~ 10-3 M. What is its solubility in 0.05 M NaF solution ?...Which of the following when mixed, will give a solution with pH > 7....At pair of R1 & R2 given tetrapeptide contain maximum positive charge at pH = 7...