A solution of an acid in water has a pH of 4, which is slightly acidic. Is this solution a weak acid?
Possibly, but we don't really know.
For the protonolysis of an acid in water we write:
Now for a strong acid, the equilibrium lies strongly to the right; whereas for a weak acid, the equilbrium lies to the left. However, what if I take a dilute solution of a strong acid?
Suppose I have prepared