Question

What is pH of the solution with [OH-] =8.5 x 10^-3M?
a) 2.1
b) 3.0
c) 4.0
d) 5.0

Answer 1

The pH of the solution with [OH-] = 8.5 x 10^-3 M is approximately 11.9.

Step-by-step explanation:

pH of the Solution

The pH of a solution can be calculated using the formula pH = -log[H3O+].

In this case, we are given [OH-] = 8.5 x 10^-3 M. To find [H3O+], we can use the equation: [H3O+][OH-] = 1 x 10^-14 M^2

Substituting the given value of [OH-], we get [H3O+] = 1 x 10^-14 / 8.5 x 10^-3 = 1.18 x 10^-12 M

Now, we can calculate the pH using pH = -log(1.18 x 10^-12) = 11.93

Answer

The pH of the solution with [OH-] = 8.5 x 10^-3 M is approximately 11.9.