A) Use activity coefficients to determine the concentration of hydrogen ions in a solution of 85.0mM butanoic acid and 0.1 M NaCl. Explain the ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO- to be 500 pm.
B) Explain what is the pH of this solution? Include activity coefficients in your calculation.
C) Explain what is the fraction of dissociation of butanoic acid in this solution.