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QUESTION
What is the overall Kc for the equation H3PO4(aq) â 3H+(aq) + PO43-(aq) given the following multiple equilibria at 25°C? H3PO4(aq) â H+(aq) + H2PO4-(aq) Kc1 = 7.5...
What is the overall Kc for the equation H3PO4(aq) ⇆ 3H+(aq) + PO43-(aq) given the following multiple equilibria at 25°C?H3PO4(aq) ⇆ H+(aq) + H2PO4-(aq) Kc1 = 7.5 x 10-3H2PO4-(aq) ⇆ H+(aq) + HPO42-(aq) Kc2 = 6.2 x 10-8HPO42-(aq) ⇆ H+(aq) + PO43-(aq) Kc3 = 4.8 x 10-13
