Using dissociation constants from Appendix D in the textbook, determine the value for the equilibrium constant for each of the following reactions. (Remember that when reactions are added, the corresponding equilibrium constants are multiplied.)
(i) HCO−3(aq)+OH−(aq)⇌CO2−3(aq)+H2O(l)
(ii) NH+4(aq)+CO2−3(aq)⇌NH3(aq)+HCO−3(aq)

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  1. What's your problem here? Just look up the Keq for each half and multiply them together.

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