a. A formic acid/sodium formate buffer solution can be prepared with 0.012 M each of formic

acid (HCOOH) and sodium formate (NaCOOH). The Ka for formic acid is 1.8 x 104. The

simultaneous equilibrium reaction is as shown below. Calculate the pH and the buffer

capacity of the solution.

HCOOH) + H2O =H3O* (aq) + HCOO (aa)

b. Suppose you wanted to increase the buffer capacity of the formic acid/sodium formate

buffer solution above. What would you do? Explain your answer.

c. A solution is made by dissolving 15.4 g of HCI in 500 mL of water. Calculate the pH of the

solution assuming the volume remains constant.