Note 221 — Chapter VI · CHEMICAL EQUILIBRIUM. THE LAW OF MASS ACTION

For instance, in the first place, the action of 0.1 mole of HCl on 0.1 mole of C2H3O2Na, dissolved in a liter of water, and, in the second place, the action of 0.1 mole of NaOH on 0.1 mole of NH4Cl, in a liter of water, may be considered. The strong electrolytes (HCl, C2H3O2Na, NaCl, NH4Cl, NaOH) may be taken to be (roughly) 80% ionized. From the concentrations given and the constants involved, the direction and the presumable intensity of the main change in each of the two cases should be determined.