Question

The OH- concentration in a 2.5 x 10-3 M Ba(OH)2 solution is

A) 1.2 x 10^-2 M.
B) 2.5 x 10^-3 M.
C) 5.0 x 10^-3 M.
D) 4.0 x 10^-12 M.

Answer 1

Answer : C) 5.0 x 10^-3 M
if the concentration of Ba(OH)2 is 2.5 x 10^-3 M

then the OH- concentration is twice this so your answer is C.