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Carbonic acid (H2CO3) is a diprotic weak acid that undergoes the following dissociation reactions: H2CO3 ⇌...

Carbonic acid (H2CO3) is a diprotic weak acid that undergoes the following dissociation reactions:
H2CO3 ⇌ H+ + HCO3− Ka1 = 4.3 x 10−7
HCO3− ⇌ H+ + CO32− Ka2 = 5.6 x 10−11
For a 0.020 M solution of carbonic acid in water, which of the following is true?

[HCO3−] = [CO32−]
[H+] = Ka1
[CO32−] = Ka2
Ka1 = Ka2
[H+] = Ka2

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Expert Solution

queen_honey_blossom answered 2 years ago
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