Consider a solution that is 0.10 M in a weak triprotic acid which is represented by the gen- eral formula H3A with ionization constants K1 = 1.0×10−3, K2 = 1.0×10−8, and K3 = 1.0×10−12. What is the pH of the solution?
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Expert's answer
2012-11-27T08:08:54-0500
K3 is very small,so K2 and K1 is resulting infinding pH H2A- = H+ + HA- K2 = [H+]2/H2A-
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