I don't know if its just me, but I think the wording of the question is weird and I'm not really understanding what it is saying. I have stared at this problem for many hours and have even went to the teacher to try to clarify. The teacher provide us with the actual work on how to calculate it, but I do not understand the steps she has taken. 1. The problem statement, all variables and given/known data Here's the question: Make 200 mL of 0.1M Na-acetate buffer, pH 5.1, starting with 5.0 M acetic acid and 1.0M NaOH. 2. Relevant equations pKa of acetic acid = 4.76 pH = pKa + log([Ac-]/[HAc] 3. The attempt at a solution I'm really struggling on what the question is saying, particularly with the part where it says "Make 200mL of 0.1M NAa-acetate buffer". I cannot really start the problem off because I do not understand what it wants. If someone can maybe explain what it is saying to start me off, I think that would be really helpful to me. Thanks a lot.