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Ka1 = 7.1 x 10-3, Ka2 = 6.3 x 10-8, and Ka3 = 4.2 x 10-13 for H3PO4; Ka = 1.8 x 10-5 for HC2H3O2; Kb = 1.8 x 10-5 for NH3; Kw = 1.0 x 10-14.
For each reaction shown:
1) Write the net ionic equation for the reaction.
2) Calculate the equilibrium constant for the reaction.
3) State if the reaction does or does not go to completion, and justify your choice.
a. H3PO4(aq) + Na2HPO4(aq) ? 2NaH2PO4(aq)
b. NaOH(aq) + HC2H3O2(aq) ? NaC2H3O2(aq) + H2O(l)
c. NaH2PO4(aq) + NH3(aq) ? Na(NH4)HPO4(aq)
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