A weak acid HA has a pKa = 6.25. At what pH will [HA] = [A-] ?
6.25
Use the equilibria below for the triprotic acid for this question. (The ↔ represents the equilibrium double arrow.) H3A ↔ H+ + H2A- pKa1 = 2.00 H2A- ↔ H+ + HA2- pKa2 = 6.00 HA2- ↔ H+ + A3-
6.00
Use the equilibria below for the triprotic acid for this question. (The ↔ represents the equilibrium double arrow.) H3A ↔ H+ + H2A- pKa1 = 2.00 H2A- ↔ H+ + HA2- pKa2 = 6.00 HA2- ↔ H+ + A3-
10.00
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