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why is boric acid considered as a weak acid?

why is boric acid considered as a weak acid?

Grade:Upto college level

2 Answers

Aarti Gupta
askIITians Faculty 300 Points
9 years ago
Boric acid is also called as hydrogen borate, boracic acid, orthoboric acid.It is a weak, monobasic Lewis acid of boron and has the chemical formula H3BO3.It is sometimes written as B(OH)3).It is an weak Lewis acid accepting hydroxyl(OH-) ion from water.It does not dissociate to give hydronium (H3O+) ion rather than form metaborate ion and in turn give H3O+ ion.
B(OH)3 + H2O \rightleftha\rightleftharpoons [B(OH)4]- + H3O+
hence it is considered as weak acid.Boric acid is often used as an antiseptic, insecticide, neutron absorber, or precursor to other chemical compounds.
Rishi Sharma
askIITians Faculty 646 Points
3 years ago
Dear Student,
Please find below the solution to your problem.

Boric acid is also called as hydrogen borate, boracic acid, orthoboric acid.It is a weak, monobasic Lewis acid of boron and has the chemical formula H3BO3.It is sometimes written as B(OH)3).It is an weak Lewis acid accepting hydroxyl(OH-) ion from water.It does not dissociate to give hydronium (H3O+) ion rather than form metaborate ion and in turn give H3O+ ion. B(OH)3 + H2O [\rightleftha\rightleftharpoons] [B(OH)4]- + H3O+ hence it is considered as weak acid.Boric acid is often used as an antiseptic, insecticide, neutron absorber, or precursor to other chemical compounds.

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