Question

No clue for any of the following questions.

In Ms experiment, dissociation of KHP occurs in solution as shown on p. 32 in the Laboratory Manual. Similarly, which of the following accurately depots the balanced dissociation reaction of formic acid (CH_3COOH) in water? CH_3COOHM rightarrow CH_3CO^+(aq) + OH^-(aq) CH_3COOH(ap) rightarrow CH_3COO(aq) + H(aq) CH_3COOH(aq) rightarrow CH_3COO^-(aq) + H^+(aq) all of the above are accurate When a base of known concentration is added to an acid of unknown concentration, which is a correct description of the equivalence point of the titration? The equivalence point is reached when enough just base has been titrated to react with exactly one half of the acid in solution The equivalence point is reached when excess case has been titrated into the solution, and the moles of base added is greater than the initial moles of acid present The equivalence point is reached when just enough base has been titrated so that the moles of base added is equivalent to the initial moles of acid present in solution The equivalence point is reached just prior to the addition of any moles of base In Ms experiment, titration curves will be created by plotting the mu H of the acid solution versus the volume of NaOH added to the solution (as shown on p. 38 in the Laboratory Manual). The pKa of acetic acid and monochloroacetic acid will then be determined from their respective titration curves. Which of the following accurately describes how the pKa values can be determined from the titration curves in this experiment? the pKa is equal to the pH at the point on the titration cave where one half of the volume necessary to reach the equivalence point has been added the pKa is equal to the pH at the point on the titration curve where one quarter of the volume necessary to reach the equivalence point has been added the pKa is equal to the pH at the point on the titration curve just prior to the acdton of NaOH

Answer 1

Formic acidis an acid whichdissociates to giveproton andabase Hencethe correct answeris