Formic acid is a monoprotic acid with a Ka=1.8x10^-4
a) Calculate the pH of the solution by dissolving 20 g of formic acid in 1 L of water
b) 20 g of NaOH is added to the solution (from part a). Calculate the pH
c) Calculate the new pH if 10 mL of a .300 M HCI solution is added to the solution prepared in part b