Find the [H3O+], pH and percent ionization of a 1.00 M formic acid (HCOOh) solution. Ka= 1.8*10^-4.
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Formic acid (HCOOH) is a weak acid that partially dissociates as follows, with a Ka = 1.78Ã10-4: HCOOH + H2O â H3O+ + HCOOâ Calculate the [H+] and pH of a 0.646 M solution of formic acid. [H+]=______________
pH=________________
Now calculate the [H+] and pH of a 6.22Ã10-3 M solution of formic acid. [H+]=________________
pH=_________________
A solution of formic acid (HCOOH, Ka 5 1.8 x 10-4) has a pH of 2.70. Calculate the initial concentration of formic acid in this solution.