a. For each of the acid-base reactions in Section 1.17, compare the pKa values of the acids on either side of the equilibrium arrows and convince yourself that the position of equilibrium is in the direction indicated. (The pKa values you need can be found in Section 1.17 or in Problem 31.
b. Do the same thing for the equilibria in Section 1.16. (The pKa of +NH4 is 9.4.)