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Sunday, May 24, 2020

Why aqueous solution of borax reacts with two moles of acids ?

Aqueous solution of borax reacts with two moles of acids this is because of formation of 2mol each of Na[B(OH)4]¯and B(OH)3of which only Na[B(OH)4]¯ reacts with acid. The chemical reaction given as below:
 Na2B4O7 + 7H2O ⟶ 2B(OH)3 + 2Na[B(OH)4]
B(OH)3 or H3BO3 is an acid and does not react with acid. Hence Na[B(OH)4] reacts with acid.
 

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