What is the pH of a 2.9 M solution of HClO4? PH=

Answer 1

HClO4 is a strong acid, and as such, it will ionize completely as follows:

HClO₄(aq) <==> H⁺(aq) + ClO₄^-(aq)

2.9 M.................2.9 M.........2.9 M.......

pH = -log [H+]

pH = -log 2.9

pH = -0.46 (and yes, it is possible to have a negative pH)