Answer:
Try this link https://chem.libretexts.org/Courses/Mount_Aloysius_College/CHEM_100%3A_General_Chemistry_(O'Connor)/08%3A_Solids_Liquids_and_Gases/8.E%3A_Solids_Liquids_and_Gases_(Exercises)
Explanation:
oxygen (O)will react with water(H2O) to form hydroxide which is (OH
O2+H2O=OH
The given question is incomplete. The complete question is:
The pH of a 0.98 M solution of propanoic acid is measured to be 2.43. Calculate the acid dissociation constant of propanoic acid. Round your answer to two significant digits.
Answer: The acid dissociation constant of propanoic acid is 
Explanation:

cM 0 0

So dissociation constant will be:

Give c= 0.98 M and pH = 2.43



The acid dissociation constant of propanoic acid is 