Question

Question 33 of 45

The concentration of the hydronium ion in an aqueous solution at 25
°C is 0.0056 M. What is the concentration of the hydroxide ion?

Answer 1

[OH-] = 1.8 x 10^-12 M

Step-by-step explanation:

[H3O+][OH-] = Kw

Kw = 1.0 x 10^-14

[OH-] = 1.0 x 10^-14 / 0.0056 = 1.8 x 10^-12 M