1. The problem statement, all variables and given/known data 1) Which solution has the higher pH, a 0.001 M solution of NaOH or a 0.001 M solution of Ba(OH)2? 2) Would a 1.0 × 10-8M solution of HCl have pH < 7, pH = 7, or pH > 7? My professor said she shouldn't have put HCl as the solution, but that it doesn't matter apparently. 2. Relevant equations 3. The attempt at a solution 1) answer is: A 0.001 M solution of Ba(OH)2 has the higher pH 2) answer is: pH < 7 My question: For 1) How do i determine this? I have no idea how For 2) I'm doing pH = -log[1.0 x 10-8] and im getting pH = 8. How is the answer less than 7?