Concept:Basicity measures how many hydroxonium ions an acid can produce per molecule.
Explanation:When an acid dissolves in water, each replaceable hydrogen ion
H+ combines with a water molecule to form a hydroxonium ion
H3O+.
Therefore, the total number of
H3O+ ions formed from one molecule of the acid equals the number of replaceable hydrogen ions.
This property is defined as the basicity of the acid.
It is not the same as acid strength, pH, or concentration.
Answer:A. basicity