The Student Room Group

Does Pure water affects PH of buffer

A buffer solution having PH 4.20 was diluted by 100 cm3 of water. What is new PH
Original post by Qer
A buffer solution having PH 4.20 was diluted by 100 cm3 of water. What is new PH


The pH of a buffer depends on the ratio of the acid moles (or concentration) to the salt.

Adding water cannot change the number or ratio of moles, so the pH can't change.

Quick Reply

Latest