Worksheet & Grading Rubric – Weak Acids and Buffers
When enough NaOH was added to overcome the buffering capacity, the acetic acid is
completely converted into acetate ions and the NaOH strong base start drastically
affect the pH value.
PART C: Buffered Acetic Acid vs. HCl
: Relevant volumes and pH readings during the HCl
titration of the buffer.
During the addition of HCl in
, which buffer species reacted with the HCl?
Provide the balanced formula unit equation for this reaction.
Based on the volume of HCl added in Step 14 of the Data Analysis, determine the
buffering capacity of the buffered acetic acid solution. You may disregard the volume of
“1 L” from the definition and refer to the volume used of the original buffer. Be sure to
include the correct units.