Name the normal salt and the acid salt formed when sodium replaces
the hydrogen atoms in carbonic acid.
Answers
Answer:
What is it called when replaceable hydrogen ions in an acid are only partially replaced by a metal, resulting compound is called A) an acid salt b) a basic c) normal salt d) double salt?
Right answer is (a). It is an acid salt (not acidic salt).
Some common examples of such a salt are
(1) sodium bicarbonate, NaHCO3
(2) sodium bisulphate, NaHSO4
(3) monosodium hydrogenphosphate, NaH2PO4
(4) disodium hydrogenphosphate, Na2HPO4
(5) monosodium oxalate, NaHC2O4.
To form an acid salt, the acid must contain at least 2 replaceable hydrogen atoms. Thus, dibasic acids like carbonic acid (H2CO3), sulphuric acid (H2SO4), phosphorus acid (H3PO3) and oxalic acid (H2C2O4) and tribasic acids like phosphoric acid (H3PO4) are capable of forming acid salts. An acid salt still contains one or more replaceable hydrogens in its anion.