FratFiles

• Save Paper

The acid-base titration curves help to find the pKa, Ka, and pH at equivalent point. At the beginning pH for HCl is 1.90 which is lower than the 3.28 for acetic acid; thus, strong acid (HCl) means lower pH and weak acid (acetic acid) means higher pH. Then at the equivalent point for the titration HCl-NaOH the pH is 7, which mans that is neutral, in other words there are enough NaOH mmol to neutralize the HCl mmol present; also, the solution contains only water and NaCl the salt derived from the titration made. On the other hand, at the equivalent point for the titration acetic acid-NaOH the pH is 8.67; consequently is more basic. This is something that it was expected because for a weak monoprotic acid (acetic acid)-strong base (NaOH) titration the pH at equivalence point is always grater than 7 because the anion of the weak acid is a base. Next beyond the equivalent point, the curves for the acetic acid- NaOH and HCl-NaOH titrations are identical because the pH in both cases is......

View the rest of this paper...

Approximate Word Count: 281
Approximate Pages: 2 (250 words per double-spaced page)

Similar Essays

1. Acid Base Titrations
   

   Acid Base Titrations The acid-base titration curves help to find the pKa, Ka, and pH at equivalent point. At the beginning pH for HCl is 1.90 which is lower than the 3.28 for

2. Miss
   

   Coursework, Titrations Planning Task: Aim: To determine the concentration of ethanoic acid in a sample of vinegar. Background Information: Titration Titration is a method of

3. Chem
   

   Introduction: The major concerns within this experiment are that of performing an acid-base titration using a suitable indicator to detect the endpoint, properly using a buret and

4. Biology Assey
   

   in an indicator. From the volume and concentration of added base and the volume of acid solution, the unknown concentration of the solution before titration can be determined.

5. Acids And Bases: Titrations, Reactions, And Standardizations
   

   as determine the molecular mass of an unknown acid. Background Information: When an acid such as HCl and base such as NaOH are mixed with each other they neutralize and produce