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Author Question: The two acid dissociation constants for carbonic acid, H2CO3, are 4.3 107and 4.8 1011at 25C. The ... (Read 161 times)

wenmo

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Question 1

The sodium salt, NaA, of a weak acid is dissolved in water; no other substance is added. Which of these statements (to a close approximation) is true?

[H+] = [A]
[H+] = [OH]
[A] = [OH]
[HA] = [OH]
None of these are correct.

Question 2

The two acid dissociation constants for carbonic acid, H2CO3, are 4.3 10–7and 4.8 10–11at 25ºC. The base constant, Kb, for HCO3is:

4.3 10–7.
4.8 10–11.
2.1 10–17.
2.3 10–8.
6.2 10–22.



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Marked as best answer by wenmo on Mar 21, 2021

karlss

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wenmo

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Reply 2 on: Mar 21, 2021
:D TYSM


tandmlomax84

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Reply 3 on: Yesterday
Excellent

 

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