Which is the stronger acid in each of the following pair #HBrO_2# or #HBrO#?

Answer 1

Paisley Boney

#"HBrO"_2# is the stronger acid.

When the number of atoms bonded to the central atom of an oxyacid increases, the acidity of the oxyacid also increases.

Thus, we predict that #"HBrO"_2# should be a stronger acid than #"HBrO"#.

This is confirmed by their #K_"a"# values .

#"HBrO"_2# has #K_a = 1.2 × 10^-5#, while #"HBrO"# has #K_a = 2 × 10^-9#.

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Answer 2

Santiago Alfonso

HBrO is the stronger acid in the pair HBrO₂ or HBrO.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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