What is the pH of a solution which is 0.0400 M in formic acid, HCO2H, and 0.0600 M in sodium formate, NaHCOO? Chemistry What is the pH of a solution which is 0.0400 M in formic acid, HCO2H, and 0.0600 M in sodium formate, NaHCOO? a. 3.92 b. 3.96 c. 4.00 d. 9.52 e. 4.08 Answer: A Share this Share on FacebookTweet on TwitterPlus on Google+