[raiderhader2]

For this lab, I had to download the virtual lab form chemcollective.org. I did all of the trials for this problem and I determined the initial volume by doing M1V1=M2V2. I do not know how to find the volume...I assumed it would be zero for all of them because all of the KHP would react with all of the NaOH, since they have the same number of moles, leaving no NaOH left. Also, I do not understand how to tell which trial has the minimum concentration of KHP solution to yield the required accuracy in the NaOH results. I assumed it'd be trial 1, since it has the smallest [KHP], but I don't know it yield the required accuracy.
Here's the lab:
http://i12.photobucket.com/albums/a213/raiderhader2/gf.jpg