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Author Question: If Ka for HCN is 6.15 1010, what is Kb for CN? Note: CN + H2O HCN + OH (Read 42 times)

imowrer

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on: Mar 21, 2021

Question 1

If an acid, HA, is 18.1% dissociated in a 1.0 M solution, what is the Ka for this acid?

◦ 2.2 × 10–1
◦ 3.3 × 10–2
◦ 1.8 × 10–1
◦ 2.5 × 101
◦ None of these are correct.

Question 2

If Ka for HCN is 6.15 × 10–10, what is Kb for CN–?

  Note: CN– + H2O HCN + OH–    


◦ 6.15 × 10–24
◦ 6.15 × 104
◦ 1.63 × 10–5
◦ 1.23 × 10–9
◦ None of these are correct.
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Marked as best answer by imowrer on Mar 21, 2021

missalyssa26

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Reply #1 on: Mar 21, 2021
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imowrer

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Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it

bbburns21

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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