Question

Is it possible to prepare a buffer solution using nitric acid (`HNO_3`) and sodium hydroxide (`NaOH`)?

Answer 1

As far as I know, a buffer solution could not be prepared from `NaOH` and `HNO_3`. Nitrate anion would have little effect on `pH`.

Explanation:

You have a strong base, and a moderate to strong acid, `HNO_3`. You can protonate `HNO_3` to form water and `NO_2^+` by the use of sulfuric acid:

`HNO_3 + H_2SO_4 rarr NO_2^+ + HSO_4^(-) + H_2O`