The pH of a liquid is a measure of how acidic or basic it is. The concentration of hydrogen ions in a liquid islabeled [H+]. Use the formula pH = âlog[H+] to find the pH level, to the nearest tenth, of a liquid with [H+] about 7.8 x 10^-12.
-log[H+] = ph
-log[7.8 x 10^-12] = 11.1
pH = - log (7.8 x 10^-12) ≈ 11.1
+68 
