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.)

Question

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)

DrBob222 · Answer

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