Calculate the percent ionization of formic acid in a solution that is 0.010 M HCOOH and 0.050 M HCOONa. (K_a = 1.7 * 10^-4)

Question

Quizplus · Accepted Answer

The percent ionization can be calculated using the formula: % ionization = ( [H+] / [HCOOH] ) * 100. Using the Henderson-Hasselbalch equation, we find [H+] = 1.7 * 10^-4 * (0.010 / 0.050) = 3.4 * 10^-5. Thus, % ionization = (3.4 * 10^-5 / 0.010) * 100 = 0.34%.

Calculate the Percent Ionization of Formic Acid in a Solution