Calculate the [H3O+] and pH of 0.125 M H2CO3
[H2CO3] = 0.125 M
H2CO3 ↔ H+ + HCO3- Ka1 = 4.3x10-7
H2CO3 ↔ H+ + CO32- Ka2= 4.7x10-11
Calculate the [H3O+] and pH of each polyprotic acid solution.
a. 0.125 M H2CO3
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