1. The problem statement, all variables and given/known data Hi just a quick question. I was doing a lab report and this enzyme is supposed to work between the pH of 6.7 and 7. So I had solution of .0125 N and I said OK just subtract this from 7.0 and say that is the new Ph. So for instance 7.0 -0.125 = 6.98 I said OK this is within range so the enzyme should work. I just made this up. 2. Relevant equations 3. The attempt at a solution This is as wrong as wrong can be?