Which of the following is the numerical value of the K_w of pure water at room temperature? A) 1.0 × 10⁻¹⁴ B) 1.0 × 10⁻⁷ C) 1.0 × 10⁷ D) 1.0 × 10¹⁴

Question

Quizplus · Accepted Answer

K_w, also known as the ion product constant for water, is expressed as [H+][OH-]. At room temperature, the concentration of hydrogen ions (H+) and hydroxide ions (OH-) in pure water is equal, and each is 1.0 × 10^-7 M. Therefore, the ion product constant can be calculated as (1.0 × 10^-7)(1.0 × 10^-7) = 1.0 × 10^-14. Therefore, the correct option is A.

Which of the Following Is the Numerical Value of the Kw

Which of the Following Is the Numerical Value of the K_w