I've been posting a couple of times this week because I have a test coming up! Uck.
. I have a question about pH's now...
This one question asks to solve for the pH of the buffer. I did it and got the correct answer. The next part said that HCL is added to this buffer (the one I just solved) what will be the pH now? I'm getting confused here. Where should I start? With the original problem or the finished equation after equilibrium?
Maybe writing out the entire problem may help:
A)Determine the pH of a buffer made by mixing .20 mol of Na2HPO4 and .10 mol of NaOH and raising the volume of the osln to 1.0L.
B)What will be the pH if 10 ml of .20 M HCL is added to 100.ml of the uffer in Part A?