Chemistry Practice Problems Ka and Kb Practice Problems Solution: Given that Ka for HIO is 3.2 × 10-11 at 25°C, what...

Solution: Given that Ka for HIO is 3.2 × 10-11 at 25°C, what is the value of Kb for IO– at 25°C?

Problem

Given that Ka for HIO is 3.2 × 10-11 at 25°C, what is the value of Kb for IO at 25°C?

Solution

Recall: The Ka of an acid and the Kb of its conjugate base are related to each other by the following equation:

where Kw is the autoionization constant for water. At 25˚C, Kw = 1.0 x 10–14.

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