In aqueous solution, phosphoric acid behaves as a triprotic acid, having three ionizable hydrogen atoms. ... an extremely weak acid. Salts of phosphoric acid can be formed by replacing one, two or three of the hydrogen ions.
Is H3PO4 a weak acid?
H3PO4 is a weak acid because it undergoes partial dissociation on dissolving in water or aqueous solution and produces a low amount of hydrogen ion.
Is H3PO3 a strong or weak acid?
H3PO3 (electronegativity P = 2.1) stronger acid than H3BO3 (electronegativity B = 2.0) and thus pH H3PO3 lower than pH H3BO3 for equimolar solutions.