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Chemistry · L4 · Polyprotic acids: stepwise dissociation, successive Ka values, and multi-equivalence-point titrations · flowchart

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by @openstemUpdated Chemistry
H₃PO₄(neutral acid)H₂PO₄⁻(−1 ion)HPO₄²⁻(−2 ion)PO₄³⁻(−3 ion)Ka1 = 7.5×10⁻³ pKa1 = 2.12 — STRONGEST stepKa2 = 6.2×10⁻⁸ pKa2 = 7.21 — much weakerKa3 = 4.8×10⁻¹³ pKa3 = 12.32 — weakest step

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