Hypoiodous acid, HIO, has an acid dissociation constant of Ka = 2.3 x 10-11 . a) What...

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Chemistry

Hypoiodous acid, HIO, has an acid dissociation constant of Ka =2.3 x 10-11 .

a) What is the useful pH range of a buffer prepared fromhypoiodous acid and its conjugate base, hypoiodite?

b) Determine the pH of a solution prepared by mixing 25.0 mL of0.212 M hypoiodous acid with 30.0 mL of 0.126 M NaOH (you mayassume that the volumes of the solutions are additive).

c) What mass of HCl(g) can be added to the solution in part (b)before it is no longer a buffer? Ka (HCl) = 4.5x10^-7

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