Question

Is H2CO3 and Na2CO3 a buffer

Answer 1

Yes it is a buffer because it is a combination of weak acid and it’s conjugate salt

Answer 2

No

Step-by-step explanation:

A buffer solution is a combination of a weak acid and its conjugate base; for instance, carbonic acid (H2CO3) and sodium bicarbonate (NaHCO3), not sodium carbonate (Na2CO3). Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications.