Question

write an account on pH scale and common ion effect​

Answer 1

Answer:

The common-ion effect refers to the decrease in solubility of an ionic precipitate by the addition to the solution of a soluble compound with an ion in common with the precipitate.

Answer 2

Explanation:

Addition of excess ions will alter the pH of the buffer solution. Therefore, the common ion effect takes a role in pH regulation. ... In the case of an an acidic buffer, the hydrogen ion concentration decreases, and the resulting solution is less acidic than a solution containing the pure weak acid.