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? a. [HCO3−] = [CO32−] b. [H+] = Ka2 c. [CO32−] = Ka2 d. Ka1 = Ka2 e. [H+] = Ka1
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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?
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