Question

A solution has [oh�] = 2.0 10�7 m. the [h ] in this solution is

Answer 1

The [H+] in a solution can be found by using the expression:

Kw = [H+][OH-]

where Kw is the ion product constant for water, which is equal to 1.0 x 10^-14 at 25°C.

In this case, we are given that [OH-] = 2.0 x 10^-7 M. Substituting this value into the expression above, we get:

1.0 x 10^-14 = [H+][2.0 x 10^-7]

Solving for [H+], we get:

[H+] = 5.0 x 10^-8 M

Therefore, the [H+] in this solution is 5.0 x 10^-8 M.