Calculate the pH at 25 degree C of a solution formed by
combining and 0.10 M HC2H3O2(aq) and 0.10 M NaC2H3O2(aq) Calculate
the new pH formed after addition of 0.10 mol of HCl (aq) to 1.0 L
of the solution formed in part (a)
Calculate the pH at 25°C of 176.0 mL of a buffer solution that
is 0.210 M NH4Cl and 0.210 M NH3 before and after the addition of
1.50 mL of 6.0 M HNO3. (The pKa for NH4+ = 9.75)