1.15
6.15
solution with [OH-] = 2.5 x 10-9 , A solution with [H+] = 1.2 x 10-4, A solution with pH = 4.5
4.5
pH = - log10 (2.1 x 10-6) = 5.68
1.15 (Apex)
apexvs answer 3.3
-log(9.40 X 10^-4) = 3 pH
1.39
The pH is 6,15.
The pH of a solution with H plus 2.3 10 -3 is 4.64.
- log(2.3 X 10 -12 ) = 11.6 pH -----------------very little H + concentration in this solution.