In this video explains how buffer solutions maintain pH in a solution. A buffer solution is made up of a weak acid and its conjugate base. As strong acids or bases are added the pH remains stable. A good buffer solution has a pKa value equivalent to the pH and equal amounts of the weak acid and the conjugate base.

ที่มา : http://sunsetvalley.bandcamp.com/

ลิงค์ : http://youtu.be/rIvEvwViJGk

อัพโหลดโดย : Bozeman Science