dichloroacetic acid 3.3×10^-2. Which One Of The Following Best Explains This? pKa =_____ 3.What is the pH of a solution prepared by mixing exactly … Ka =_____ 2.Calculate pKa for chloroacetic acid. So, chloroacetic acid is stronger than acetic acid. Select An Answer And Submit. In a 0.10 M solution, the pH is 1.96. Check the Ka values: acetic acid 1.8×10^-5. Question: RM-Q19 Chloroacetic Acid, CICH2CO2H, Is A Stronger Acid Than Acetic Acid. HC2H2O2Cl, is a stronger monoprotic acid than acetic acid. pulls the negative charge toward it self by inductive effect so that the negative charge density on the oxygen atom is reduced hence stabilizing the conjugate base of chloroacetic acid whil the negative charge of the oxygen atom in acetic acid is localized and the conjugate base is less stable. Therefore, the charge is less concentrated in the chloroacetate ion than it is in the acetate ion, and, accordingly, chloroacetic acid is stronger than acetic acid. For Keyboard Navigation, Use The Up/down Arrow Keys To Select An Answer. 1.Calculate the Ka for chloroacetic acid. Chlorine being a strong electron with drawing group. chloroacetic acid 1.3×10^-3. So, the negative charge density on O atom reduced and corresponding conjugate base is stabilised.. Formula of chloroacetic acid is \(ClCH_2COOH\) Here, H atom is replaced by highly electron withdrawing Cl atom. trichloroacetic acid 1.7×10^-1