What is the pH of a 0.0125 M NaOH solution?

Question

Quizplus · Accepted Answer

NaOH is a strong base, which completely dissociates in water to form OH- ions. The concentration of OH- ions in the solution is equal to the concentration of NaOH, which is 0.0125 M. The pOH of the solution can be calculated using the equation pOH = -log[OH-] = -log(0.0125) = 1.903. The pH of the solution can be found using the equation pH + pOH = 14, which gives pH = 14 - pOH = 14 - 1.903 = 12.097. Therefore, the pH of the solution is 12.097, and the best choice is option C.

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