what is the original molarity of a solution of formic acid ( HCOOH) whose pH is 3.26 at equilibrium? find Ka from the appropriate table

Chemistry
9th Edition
ISBN:9781133611097
Author:Steven S. Zumdahl
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Chapter14: Acids And Bases
Section: Chapter Questions
Problem 79E: A solution of formic acid (HCOOH, Ka = 1.8 104) has a pH of 2.70. Calculate the initial...
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what is the original molarity of a solution of formic acid ( HCOOH) whose pH is 3.26 at equilibrium? find Ka from the appropriate table.

Hint: which concentration do you know from this given information? what will be your unknown, X, in the ICE table?

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