Worksheet & Grading Rubric – Weak Acids and Buffers
resistance to the buffer solution. However, the buffering capacity from the
NaOH titration was 0.479 M and the HCl titration was 0.133 M. The HCl
buffering capacity is clearly much less than the NaOH. This may be due to
differing ratios of proton acceptor and proton donors.
If the concentrations of both acetic acid and acetate were doubled when
preparing the buffer, would you expect the buffering capacity to increase, decrease, or
stay the same? Why?
Describe two observed/possible sources of error in this experiment and discuss
how to prevent them.
A. M. Bohnsack
Spring 2019 (revised Z. Baranová)