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How many moles of hydrochloric acid reac...

How many moles of hydrochloric acid react with one mole of borax to convert all boranes to boric acid.

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The correct Answer is:
2
`underset(1" mol")(Na_(2)B_(4)O_(7))+underset(2"moles")(2HCl)+5H_(2)Orarr2NaCl+4H_(3)BO_3`
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Boric acid B(OH)_(3) is weak monobasic acid reacts with alkali to form borates. The most common borate of boric acid is borax represented as Na_(2)(B_(4)O_(5)(OH)_(4)).8H_(2)O which is made up of two tetrahedral and two triangular units. On dissolution in water, these tetrahedral and triangular units are sepeated. Borax is useful primary standard for titra tion against acids. The number of B - O - B linkage in borax is / are The number of B - O - B linkages =

Boric acid B(OH)_(3) is weak monobasic acid reacts with alkali to form borates. The most common borate of boric acid is borax represented as Na_(2)(B_(4)O_(5)(OH)_(4)).8H_(2)O which is made up of two tetrahedral and two triangular units. On dissolution in water, these tetrahedral and triangular units are sepeated. Borax is useful primary standard for titra tion against acids. Oxidation state of boron atom in borax is / are

Boric acid B(OH)_(3) is weak monobasic acid reacts with alkali to form borates. The most common borate of boric acid is borax represented as Na_(2)(B_(4)O_5(OH)_4.8H_2O which is made up of two tetrahedral and two triangular units. On dissolution in water, these tetrahedral and triangular units are seperated. Borax is useful primary standard for titra tion against acids The number of B - O - B linkage in borax is/are