posted by Rose .
If I take 5mL of a TRIS/HCL buffer with a pH of 7.4 and add 1mL of 1M HCL, how do I determine the new pH?
Don't I need the concn of the buffer?
The TRIS-HCl buffer is 0.1 M.
This is done the same way the phosphate buffer is done. The only difference is the pKa value for TRIS. If you have a follow up question, please repost at the top of the page. I have trouble finding these when they get so far at the bottom of the list.