What is the hydroxide ion concentration and the pH for a hydrochloric acid solution that has a hydronium ion concentration of 1.50 x 10^-2 mol L^-1 A) 6.67 × 10^-¹² mol L^-1, 2.82 B) 6.67 × 10^-¹² mol L^-1, 11.18 C) 6.67 × 10^-¹³ mol L^-1, 1.82 D) 6.67 × 10^-¹³ mol L^-1, 12.17

Question

Quizplus · Accepted Answer

The concentration of the hydroxide ion can be found by using the equation Kw = [H+][OH-], where Kw is the ion product constant for water (10^-14), and solving for [OH-]. 
[OH-] = Kw/[H+] = (1.0 x 10^-14)/(1.50 x 10^-12) = 6.67 x 10^-3 mol/L
The pH can be found by using the equation pH = -log[H+], where [H+] is the given concentration of hydronium ions. 
pH = -log(1.50 x 10^-12) = 1.82
Therefore, the correct answer is C.

What Is the Hydroxide Ion Concentration and the PH for a Hydrochloric