[asnjr2]

Hi,
          I am a first year chemistry student and plan on majoring in chemistry as my career. But
I am stumped on the topic of buffers when it comes to acids and bases.

You run an experiment to determine the buffer capacity of a 0.50 M aceti acid/ acetate
buffer. You use 22.87 mL of 0.0878 M KOH to titrate 10.00 mL of the buffer solution and
effect a change of 1.02 pH units. What is the buffer capacity.

I calculated
0.002008 moles/((1.02pH)x(.01L)=.19686  <<<<<<<Is this the correct answer<<<<<<

Also
1. What relationship does buffer capacity versus buffer concentration have?
2. Can a buffer be formed from HNO3/NO3-? Why or why not?
3. What could you do to the concentration of the constituents of your buffer solutions to
optimize them for titration with a strong acid?

I am emailing from Anchorage, alaska and need guidance. Please email me if you can help.
Thank You

[Borek]

There is no one, widely accepted definition of buffer capacity, so not knowing what definition you use we can't help.

http://www.chembuddy.com/?left=pH-calculation&right=pH-buffer-capacity