The two acid dissociation constants for carbonic acid, H2CO3, are ...

[wenmo]

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, K_b, for HCO₃^–is:

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

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[karlss]

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[wenmo]

YES! Correct, THANKS for helping me on my review

[ultraflyy23]

Thanks for the timely response, appreciate it