Understanding the Concepts
* KOH is a strong base: This means it completely dissociates in water, releasing all of its hydroxide ions (OH-).
* pH and pOH: pH and pOH are related to the concentration of hydrogen ions (H+) and hydroxide ions (OH-), respectively. They are connected by the equation: pH + pOH = 14.
Calculations
1. Find the pOH: Since KOH is a strong base, the concentration of OH- ions is equal to the concentration of the KOH solution.
* [OH-] = 1 x 10^-5 M
* pOH = -log[OH-] = -log(1 x 10^-5) = 5
2. Calculate the pH:
* pH + pOH = 14
* pH = 14 - pOH = 14 - 5 = 9
Answer: The pH of a 1 x 10^-5 M KOH solution is 9.
