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From the equilibrum constants with pka1= 6.37, pka2= 10.32 at 25 0 C for pH from 0 to 14 CO 2 (g) CO 2 (aq)

From the equilibrum constants with pka1= 6.37, pka2= 10.32 at 250C for pH from 0 to 14

CO2(g) CO2(aq)

CO2(aq) + H2O H++ HCO3 -

HCO3- H+ + CO32-

[CO2aq] = [H+]2/ [H+]2 + ka1[H+] + ka1ka2

HCO3 - = ka1[H+]/ [H+]2 + ka1[H+] + ka1ka2

CO32- = ka1ka2/[H+]2 + ka1[H+] + ka1ka2

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