I am having trouble understanding this question. I don’t need every single value worked out I…

I am having trouble understanding this question. I don’t need
every single value worked out I just want to understand what to do
so I can work the rest out myself!
The question is written exactly as writtten:
The pK of an acid is 4.16. Calculate the pH of a solution of the
acid if it is titrated to the following extents. Use the value
associated with your student ID: extent of titration with NaOH,
percent
0
1
2
3
4
5
6
7
8
9
28
71
33….
The istructions say,
Show all Calculations, give your pH value to two decimal
places
My Student ID number is 1
I really just need help understanding the problem and how I
should work it out, I don’t want every single pH answer to the
solution of the acid if it was titrated to all of the extents that
are requested. I truly just want to learn and understand!
Thanks for your help and time!