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  3. 1. the kaof iodic acid (hio3) at 25 °c is 1.6*1

1. The Kaof iodic acid (HIO3) at 25 °C is 1.6*10-1. What is the Kb of iodate (IO3-) at...

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Chemistry

1. The Kaof iodic acid(HIO3) at 25 °C is1.6*10-1. What is theKb of iodate(IO3-) at thistemperature?

b. Use the information in the first question to calculate the pHof a 0.10 M solution of iodic acid at atemperature of 25 °C?

c. Use the information in the first question to calculate the pHof a solution obtained by combining 20.0 mL of0.10 M iodic acid and 10.0mL of 0.1 M sodium hydroxide(NaOH).

d. Use the information in the first question to calculate the pHof a solution obtained by combining 20.0 mL of0.10 M iodic acid and 20.0mL of 0.1 M sodiumhydroxide.

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Answer & Explanation Solved by verified expert
4.1 Ratings (803 Votes)

1)   ans     Ka * Kb = Kw

                        1.6 * 10-1 * Kb = 10-14

                                               Kb   =   0.625 * 10-13

b)   PH   = - log   [ H+]

                                  = - log 10-1

                                                  = 1

                       thank u
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