设碳酸钠浓度为a mol/L
已知pKb = 3.67
pH = 9.8时,[OH^-] = 10^-4.2
CO3^2- + H2O = HCO3^- + OH^-
a-10^-4.2 10^-4.2 10^-4.2
[OH^-][HCO3^- ]/[CO3^2-] = 10^-3.67
a = 8.17e-5mol/L
设碳酸钠浓度为a mol/L
已知pKb = 3.67
pH = 9.8时,[OH^-] = 10^-4.2
CO3^2- + H2O = HCO3^- + OH^-
a-10^-4.2 10^-4.2 10^-4.2
[OH^-][HCO3^- ]/[CO3^2-] = 10^-3.67
a = 8.17e-5mol/L