Question

The H+ion concentration of a solution is 4 x 10-5M.
Then the OH-ion concentration of the same solu-
tion is
(a) 4 x 10-5 M
(c) 1.0 x 10-7 M
(b) 2.5 x 10-9 M
(d) 2.5 x 10-10 M​

Answer 1

Explanation:

For any solution,

[H

+

][OH

−

]=10

−14

⇒4×10

−5

×[OH

−

]=10

−14

⇒[OH

−

]=2.5×10

−10

M