A solution is prepared that contains 10 mM NaCl, 20 mM
CaCl2, 20 mM BaCl2, and 50 mM
NiNO3. Of course, all these salts completely dissolve to
their respective cations and anions. The pH is 7.0.
(a) Calculate the ionic strength of the solution.
(b) Calculate the activity coefficients for H+,
Cl-, and Ba2+ (use the Guntenberg
approximation because the solutions do, though note there are a few
other equations and a graph that can be used at your discretion...