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

Question

Quizplus · Accepted Answer

For a neutral solution, pH + pOH = 14.
Given the concentration of hydronium ions, we can find the pH:
pH = -log[H3O+]
pH = -log(1.50 x 10^-11) = 10.77
Now we can find the pOH:
pH + pOH = 14
pOH = 14 - 10.77 = 3.23
Finally, we can find the concentration of hydroxide ions:
pOH = -log[OH-]
3.23 = -log[OH-]
[OH-] = 6.67 x 10^-11 M
Therefore, the hydroxide ion concentration is 6.67 x 10^-13 M and the pH is 1.82. The correct answer is C.

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