What is the hydroxide ion concentration in a solution with a pH of 9.65?
The Concept of Hydroxide Ion Concentration Calculation from pH
Hydroxide Ion Concentration: The hydroxide ion concentration in a solution can be determined by understanding the relationship between pH, pOH, and the concentration of hydroxide ions.
Given that pH and pOH are related by the equation pH + pOH = 14 at room temperature, we can calculate the pOH of a solution with a pH of 9.65 as follows:
pOH = 14 - 9.65 = 4.35
To find the hydroxide ion concentration ([OHâ»]), we need to take the antilogarithm of the negative pOH. Mathematically, that's [OHâ»] = antilog(-pOH) = 10â»â´.³âµ. Therefore, the hydroxide ion concentration is approximately 4.47Ã10â»âµ M.
Understanding the concept of pH, pOH, and their relationship is crucial in determining the concentration of hydroxide ions in a solution based on its pH value.