(a) What is meant by the term acid salt? Give one example.
(b) State the reason why an all-glass apparatus must be used for the laboratory preparation of concentrated trioxonitrate (V) acid.
Explanation
(a) Acid salt is the salt which contains acidic hydrogen e.g. Sodium hydrogen trioxocarbonate (IV) (NaHCO\(_3\))
(b) Glass is not attacked by the concentrated trioxonitrate (V) acid